@ARTICLE{2013CEAB...37..397V,
       author = {{Valn{\'\i}{\v{c}}ek}, B. and {Bumba}, V. and {Ambro{\v{z}}}, P.},
        title = "An Insight into the Origin of Hvar Observatory",
      journal = {Central European Astrophysical Bulletin},
         year = 2013,
       volume = {37},
        pages = {397-399},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2013CEAB...37..397V},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{2011CoSka..41...69G,
       author = {{Garc{\'{\i}}a}, A. and {Sobotka}, M. and {Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Synoptic observations with the Coimbra spectroheliograph",
      journal = {Contributions of the Astronomical Observatory Skalnate Pleso},
         year = 2011,
       volume = {41},
       number = {2},
        pages = {69-72},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2011CoSka..41...69G},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2010nspm.conf..206G,
       author = {{Garc{\'{\i}}a}, A. and {Klva{\v{n}}a}, M. and {Sobotka}, M. and {Bumba}, V.},
        title = "Spectroheliograms recorded using the new CCD camera in the OAUC, Coimbra, Portugal",
    booktitle = {20th National Solar Physics Meeting},
         year = 2010,
       editor = {{Dorotovic}, Ivan},
       volume = {20},
        pages = {206-209},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2010nspm.conf..206G},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2010nspm.conf...64B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M.},
        title = "Co ovliv{\v{n}}uje pr{\`u}b{\v{e}}h jeden{\'a}ctilet{\'e}ho cyklu slune{\v{c}}n{\'\i} aktivityCo ovliv{\v{n}}uje pr{\`u}b{\v{e}}h jeden{\'a}ctilet{\'e}ho cyklu slune{\v{c}}n{\'\i} aktivityWhat affects the evolution of the eleven-year cycle of solar activity.",
    booktitle = {20th National Solar Physics Meeting},
         year = 2010,
       editor = {{Dorotovic}, Ivan},
       volume = {20},
        pages = {64-71},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2010nspm.conf...64B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2010ASSP...19..410S,
       author = {{{\v{S}}vanda}, M. and {Sobotka}, M. and {Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Dynamics of Active Regions Revealed by Tracking of Doppler Features",
    booktitle = {Magnetic Coupling between the Interior and Atmosphere of the Sun},
         year = 2010,
       series = {Astrophysics and Space Science Proceedings},
       volume = {19},
        pages = {410-412},
          doi = {10.1007/978-3-642-02859-5\_42},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2010ASSP...19..410S},
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@ARTICLE{2008A&A...477..285S,
       author = {{{\v{S}}vanda}, M. and {Klva{\v{n}}a}, M. and {Sobotka}, M. and {Bumba}, V.},
        title = "Large-scale horizontal flows in the solar photosphere. II. Long-term behaviour and magnetic activity response",
      journal = {\aap},
         year = 2008,
       volume = {477},
       number = {1},
        pages = {285-292},
          doi = {10.1051/0004-6361:20077718},
archivePrefix = {arXiv},
       eprint = {0710.2693},
 primaryClass = {astro-ph},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2008A&A...477..285S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{2007ASPC..368..549K,
       author = {{Klva{\v{n}}a}, M. and {Garc{\'{\i}}a}, A. and {Bumba}, V.},
        title = "The Modernized Spectroheliograph at Coimbra",
    booktitle = {The Physics of Chromospheric Plasmas},
         year = 2007,
       editor = {{Heinzel}, P. and {Dorotovi{\v{c}}}, I. and {Rutten}, R.~J.},
       series = {Astron.\ Soc.\ Pacific Conf.\ Ser.},
       volume = {368},
        pages = {549},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2007ASPC..368..549K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2007ASPC..368..511B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M. and {Garc{\'{\i}}a}, A.},
        title = "Regularities in the Distribution of Solar Magnetic Fields",
    booktitle = {The Physics of Chromospheric Plasmas},
         year = 2007,
       editor = {{Heinzel}, P. and {Dorotovi{\v{c}}}, I. and {Rutten}, R.~J.},
       series = {Astron.\ Soc.\ Pacific Conf.\ Ser.},
       volume = {368},
        pages = {511},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2007ASPC..368..511B},
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@ARTICLE{2006CEAB...30...21K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V. and {{\v{S}}vanda}, M.},
        title = "Doppler Velocity Fields in Magnetic Structures and their Surroundings",
      journal = {Central European Astrophysical Bulletin},
         year = 2006,
       volume = {30},
        pages = {21-30},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2006CEAB...30...21K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{2005HvaOB..29...89K,
       author = {{Klva{\v{n}}a}, M. and {{\v{S}}vanda}, M. and {Bumba}, V.},
        title = "Temporal Changes of the Photospheric Velocity Fields",
      journal = {Hvar Observatory Bulletin},
         year = 2005,
       volume = {29},
        pages = {89-98},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2005HvaOB..29...89K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{2004HvaOB..28..157K,
       author = {{Klva{\v{n}}a}, M. and {{\v{S}}vanda}, M. and {Krivtsov}, A. and {Bumba}, V.},
        title = "Do tidal waves exist in the solar photosphere?",
      journal = {Hvar Observatory Bulletin},
         year = 2004,
       volume = {28},
       number = {1},
        pages = {157-165},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2004HvaOB..28..157K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2003ESASP.535..149S,
       author = {{Svanda}, M. and {Klvana}, M. and {Sobotka}, M. and {Bumba}, V.},
        title = "Dynamics of motions in the quiet photosphere",
    booktitle = {Solar Variability as an Input to the Earth's Environment},
         year = 2003,
       editor = {{Wilson}, Andrew},
       series = {ESA Special Publication},
       volume = {535},
        pages = {149-152},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2003ESASP.535..149S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2003ESASP.535..121K,
       author = {{Krivtsov}, A.~M. and {Klvana}, M. and {Bumba}, V.},
        title = "Photosphere velocity field generated by tidal forces",
    booktitle = {Solar Variability as an Input to the Earth's Environment},
         year = 2003,
       editor = {{Wilson}, Andrew},
       series = {ESA Special Publication},
       volume = {535},
        pages = {121-123},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2003ESASP.535..121K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2003ESASP.535...71B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M. and {Garc{\'{\i}}a}, A.},
        title = "Photospheric background Doppler velocity field during the development of active regions",
    booktitle = {Solar Variability as an Input to the Earth's Environment},
         year = 2003,
       editor = {{Wilson}, Andrew},
       series = {ESA Special Publication},
       volume = {535},
        pages = {71-74},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2003ESASP.535...71B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2003ESASP.535....3B,
       author = {{Bumba}, V.},
        title = "Cyclic changes of the solar global and local magnetic fields patterns",
    booktitle = {Solar Variability as an Input to the Earth's Environment},
         year = 2003,
       editor = {{Wilson}, Andrew},
       series = {ESA Special Publication},
       volume = {535},
        pages = {3-14},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2003ESASP.535....3B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{2003HvaOB..27..205K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V. and {Sobotka}, M.},
        title = "System of coordinates for solar telescopes",
      journal = {Hvar Observatory Bulletin},
         year = 2003,
       volume = {27},
       number = {1},
        pages = {205-214},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2003HvaOB..27..205K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{2003AN....324..305K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V. and {Sobotka}, M.},
        title = "A CCD-based guiding and control system for solar telescopes",
      journal = {Astronomische Nachrichten},
         year = 2003,
       volume = {324},
       number = {4},
        pages = {305-307},
          doi = {10.1002/asna.200310104},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2003AN....324..305K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{2002ESASP.506..837B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M. and {Garc{\'{\i}}a}, A.},
        title = "Short-term solar activity regularities",
    booktitle = {Solar Variability: From Core to Outer Frontiers},
         year = 2002,
       editor = {{Wilson}, A.},
       series = {ESA Special Publication},
       volume = {2},
        pages = {837-840},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2002ESASP.506..837B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2002ESASP.505..449K,
       author = {{Klvana}, M. and {Kaltman}, T.~I. and {Bumba}, V.},
        title = "The depths of sunspot magnetic field sources calculated on the basis of magnetographic measurements in two spectral lines",
    booktitle = {SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference},
         year = 2002,
       editor = {{Sawaya-Lacoste}, Huguette},
       series = {ESA Special Publication},
       volume = {505},
        pages = {449-452},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2002ESASP.505..449K},
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@INPROCEEDINGS{2002ESASP.505..433K,
       author = {{Kaltman}, T.~I. and {Klvana}, M. and {Korzhavin}, A.~N. and {Bumba}, V.},
        title = "Semi-empirical modelling of sunspots magnetic fields on the basis of radio astronomical and magnetographic observations",
    booktitle = {SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference},
         year = 2002,
       editor = {{Sawaya-Lacoste}, Huguette},
       series = {ESA Special Publication},
       volume = {505},
        pages = {433-436},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2002ESASP.505..433K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2002ESASP.505..365B,
       author = {{Bumba}, V. and {Klvana}, M. and {Garc{\'{\i}}a}, A.},
        title = "Sunspot's magnetic and velocity field within the convective network",
    booktitle = {SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference},
         year = 2002,
       editor = {{Sawaya-Lacoste}, Huguette},
       series = {ESA Special Publication},
       volume = {505},
        pages = {365-368},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2002ESASP.505..365B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2002ESASP.477..135K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Rotation of the vector velocity field in a symmetric sunspot",
    booktitle = {Solspa 2001, Proceedings of the Second Solar Cycle and Space Weather Euroconference},
         year = 2002,
       editor = {{Sawaya-Lacoste}, Huguette},
       series = {ESA Special Publication},
       volume = {477},
        pages = {135-138},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2002ESASP.477..135K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2002ESASP.477...83B,
       author = {{Bumba}, V. and {Klvana}, M. and {Garc{\'{\i}}a}, Adriana},
        title = "Impulses of solar activity",
    booktitle = {Solspa 2001, Proceedings of the Second Solar Cycle and Space Weather Euroconference},
         year = 2002,
       editor = {{Sawaya-Lacoste}, Huguette},
       series = {ESA Special Publication},
       volume = {477},
        pages = {83-86},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2002ESASP.477...83B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2001AGM....18S1002K,
       author = {{Klva{\v{n}}a}, M. and {Sobotka}, M. and {Bumba}, V.},
        title = "Reconstruction of the Telescopes HSFA1 and HSFA2",
    booktitle = {Astronomische Gesellschaft Meeting Abstracts},
         year = 2001,
       series = {Astronomische Gesellschaft Meeting Abstracts},
       volume = {18},
          eid = {MS 10 02},
        pages = {MS 10 02},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2001AGM....18S1002K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2001AGM....18.P220K,
       author = {{Klva{\v{n}}a}, M. and {Sobotka}, M. and {Bumba}, V.},
        title = "Reconstruction of the Telescopes HSFA1 and HSFA2",
    booktitle = {Astronomische Gesellschaft Meeting Abstracts},
         year = 2001,
       series = {Astronomische Gesellschaft Meeting Abstracts},
       volume = {18},
          eid = {P220},
        pages = {P220},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2001AGM....18.P220K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{2000SoPh..197..175B,
       author = {{Bumba}, V. and {Garc{\'{\i}}a}, A. and {Klva{\v{n}}a}, M.},
        title = "The Role of the Magnetic Field in the Ascension of the 22nd and 23rd Cycles of Activity",
      journal = {\solphys},
         year = 2000,
       volume = {197},
       number = {1},
        pages = {175-202},
          doi = {10.1023/A:1026564727830},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2000SoPh..197..175B},
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@ARTICLE{2000SoPh..196..403B,
       author = {{Bumba}, V. and {Garc{\'{\i}}a}, A. and {Klva{\v{n}}a}, M.},
        title = "Longitudinal Distribution of Solar Magnetic Fields and Activity During the Ending and Starting Periods of Activity Cycles",
      journal = {\solphys},
         year = 2000,
       volume = {196},
       number = {2},
        pages = {403-419},
          doi = {10.1023/A:1005226228739},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2000SoPh..196..403B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{2000HvaOB..24...97K,
       author = {{Klvana}, M. and {Bumba}, V. and {Kaltman}, T.},
        title = "Regular and Anomalous Effects in the Magnetic and Velocity Fields of Symmetrical Sunspots",
      journal = {Hvar Observatory Bulletin},
         year = 2000,
       volume = {24},
       number = {1},
        pages = {97},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2000HvaOB..24...97K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{2000ESASP.463..289B,
       author = {{Bumba}, V. and {Klvana}, M.},
        title = "Complexes of Activity - Basic Components of Activity Cycles (from the Bottom of the Convective Zone till the Interplanetary Space)",
    booktitle = {The Solar Cycle and Terrestrial Climate, Solar and Space weather},
         year = 2000,
       editor = {{Wilson}, A.},
       series = {ESA Special Publication},
       volume = {463},
        pages = {289},
       adsurl = {https://ui.adsabs.harvard.edu/abs/2000ESASP.463..289B},
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@INPROCEEDINGS{1999ESASP.448..581B,
       author = {{Bumba}, V. and {Garc{\'{\i}}a}, A. and {Klvana}, M.},
        title = "Magnetic Flux Emergence at the Beginning of the Present Cycle of Activity",
    booktitle = {Magnetic Fields and Solar Processes},
         year = 1999,
       editor = {{Wilson}, A. and {et al.}},
       series = {ESA Special Publication},
       volume = {9},
        pages = {581},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999ESASP.448..581B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{1999ESASP.448..325K,
       author = {{Krivtsov}, A.~M. and {Klvana}, M. and {Bumba}, V. and {Kaltman}, T.~I.},
        title = "Determination of the Full Velocity Vector in an Asymmetric Sunspot: the Case for Small Vertical Velocity Components",
    booktitle = {Magnetic Fields and Solar Processes},
         year = 1999,
       editor = {{Wilson}, A. and {et al.}},
       series = {ESA Special Publication},
       volume = {9},
        pages = {325},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999ESASP.448..325K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{1999ESASP.448..313K,
       author = {{Klvana}, M. and {Krivtsov}, A. and {Bumba}, V.},
        title = "Photospheric Velocity Vector Fields in Irregular Sunspots",
    booktitle = {Magnetic Fields and Solar Processes},
         year = 1999,
       editor = {{Wilson}, A. and {et al.}},
       series = {ESA Special Publication},
       volume = {9},
        pages = {313},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999ESASP.448..313K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{1999ASPC..184..108K,
       author = {{Krivtsov}, A.~M. and {Hofmann}, A. and {Staude}, J. and {Klva{\~n}a}, M. and {Bumba}, V.},
        title = "Determination of the Velocity Vector Field in an Asymmetric Sunspot Based on Vector Magnetograph Measurements",
    booktitle = {Third Advances in Solar Physics Euroconference: Magnetic Fields and Oscillations},
         year = 1999,
       editor = {{Schmieder}, B. and {Hofmann}, A. and {Staude}, J.},
       series = {Astron.\ Soc.\ Pacific Conf.\ Ser.},
       volume = {184},
        pages = {108-112},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999ASPC..184..108K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{1999joso.proc..193K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V. and {Krivtsov}, A.},
        title = "Velocity structures in the quiet solar photosphere.",
    booktitle = {JOSO Annu. Rep., 1998},
         year = 1999,
        pages = {193-194},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999joso.proc..193K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{1999joso.proc..190B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M. and {Rompolt}, B. and {Rudawy}, P.},
        title = "Photospheric line-of-sight velocity field under quiet H{\ensuremath{\alpha}} filaments.",
    booktitle = {JOSO Annu. Rep., 1998},
         year = 1999,
        pages = {190-192},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999joso.proc..190B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{1999joso.proc..109B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M.},
        title = "Photoelectrically measured Doppler motions in regular spots.",
    booktitle = {JOSO Annu. Rep., 1998},
         year = 1999,
        pages = {109-111},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999joso.proc..109B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@INPROCEEDINGS{1999ASSL..239..205K,
       author = {{Klvana}, M. and {Bumba}, V. and {Krivtsov}, A.},
        title = "Medium Scale Photospheric Motion Fields",
    booktitle = {Motions in the Solar Atmosphere},
         year = 1999,
       editor = {{Hanslmeier}, Arnold and {Messerotti}, Mauro},
       series = {Astrophysics and Space Science Library},
       volume = {239},
        pages = {205-208},
          doi = {10.1007/978-94-015-9331-1\_10},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1999ASSL..239..205K},
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@ARTICLE{1998A&A...335.1077K,
       author = {{Krivtsov}, A.~M. and {Hofmann}, A. and {Staude}, J. and {Klvana}, M. and {Bumba}, V.},
        title = "Determination of the full velocity vector based on vector magnetograph measurements in an asymmetric sunspot",
      journal = {\aap},
         year = 1998,
       volume = {335},
        pages = {1077-1084},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998A&A...335.1077K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{1998PAICz..88...67B,
       author = {{Bumba}, V. and {Klva{\v{n}}m}, A.},
        title = "Do sympathetic flares really exist?",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1998,
       volume = {88},
        pages = {67},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998PAICz..88...67B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{1998PAICz..88...25K,
       author = {{Klva{\v{n}}m}, A. and {Bumba}, V.},
        title = "Flare activity and photoelectric measurements of magnetic and velocity fields",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1998,
       volume = {88},
        pages = {25},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998PAICz..88...25K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{1998PAICz..88...21B,
       author = {{Bumba}, V. and {Klva{\v{n}}m}, A.},
        title = "Why does the radio activity accompanying the flares in the two large active regions of June 1982 differ so much?",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1998,
       volume = {88},
        pages = {21},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998PAICz..88...21B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
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@ARTICLE{1998PAICz..88....1B,
       author = {{Bumba}, V.},
        title = "Solar active longitudes and longitudinal concentration of flaring active regions",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1998,
       volume = {88},
        pages = {1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998PAICz..88....1B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1998ASPC..155..224B,
       author = {{Bumba}, V. and {Klva{\~n}a}, M. and {K{\'a}lm{\'a}n}, B. and {Rompolt}, B. and {Rudawy}, P.},
        title = "Chromospheric Activity above Changing Photospheric Magnetic and Velocity Fields of Developing Active Regions",
    booktitle = {Three-Dimensional Structure of Solar Active Regions},
         year = 1998,
       editor = {{Alissandrakis}, Costas E. and {Schmieder}, Brigitte},
       series = {Astron.\ Soc.\ Pacific Conf.\ Ser.},
       volume = {155},
        pages = {224},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998ASPC..155..224B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1998ASPC..155...79K,
       author = {{Klva{\~n}a}, M. and {Bumba}, V. and {Krivtsov}, A.},
        title = "Configuration of the Velocity and Magnetic Field Vectors in the Photosphere of Symmetrical Sunspots",
    booktitle = {Three-Dimensional Structure of Solar Active Regions},
         year = 1998,
       editor = {{Alissandrakis}, Costas E. and {Schmieder}, Brigitte},
       series = {Astron.\ Soc.\ Pacific Conf.\ Ser.},
       volume = {155},
        pages = {79},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998ASPC..155...79K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1998A&A...329.1138B,
       author = {{Bumba}, V. and {Garc{\'{\i}}a}, A. and {Jordan}, S.},
        title = "Interpreting the growth and destruction of a large long-duration solar active-region complex",
      journal = {\aap},
         year = 1998,
       volume = {329},
        pages = {1138-1144},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1998A&A...329.1138B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1997SSRv...82..469B,
       author = {{Bumba}, V.},
        title = "Shadia Rifai Habbal (ed.), Robotic Exploration Close to the Sun: Scientific Basis",
      journal = {\ssr},
         year = 1997,
       volume = {82},
        pages = {469-469},
          doi = {10.1023/A:1005022522903},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1997SSRv...82..469B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1997SoPh..173..359J,
       author = {{Jordan}, Stuart and {Garc{\'{\i}}a}, Adriana and {Bumba}, Vaclav},
        title = "Interpreting the Large Limb Eruption of July 9, 1982",
      journal = {\solphys},
         year = 1997,
       volume = {173},
       number = {2},
        pages = {359-376},
          doi = {10.1023/A:1004907008317},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1997SoPh..173..359J},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1997SoPh..173..111B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M.},
        title = "Why does the radio activity accompanying the flares in the two large active regions of June 1982 differ so much?",
      journal = {\solphys},
         year = 1997,
       volume = {173},
       number = {1},
        pages = {111-120},
          doi = {10.1023/A:1004932004407},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1997SoPh..173..111B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1997HvaOB..21..109K,
       author = {{Klvana}, M. and {Bumba}, V.},
        title = "Use of the Video-Technique for Observations with a Double Solar Telescope",
      journal = {Hvar Observatory Bulletin},
         year = 1997,
       volume = {21},
       number = {1},
        pages = {109-114},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1997HvaOB..21..109K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1996SoPh..169..303B,
       author = {{Bumba}, V.},
        title = "Local Solar Magnetic and Velocity Field Development and Related Photospheric and Chromospheric Activity",
      journal = {\solphys},
         year = 1996,
       volume = {169},
       number = {2},
        pages = {303-312},
          doi = {10.1007/BF00190607},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1996SoPh..169..303B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1996A&AS..118...35B,
       author = {{Bumba}, V. and {Klvana}, M. and {Kalman}, B.},
        title = "Doppler and proper motions accompanying formation of an additional magnetic flux in the mature solar active region (NOAA 7216).",
      journal = {\aaps},
         year = 1996,
       volume = {118},
        pages = {35-46},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1996A&AS..118...35B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1996A&AS..117..291B,
       author = {{Bumba}, V. and {Klvana}, M. and {Kalman}, B. and {Garc{\'{\i}}a}, A.},
        title = "The 1991 southern hemisphere complex of activity.",
      journal = {\aaps},
         year = 1996,
       volume = {117},
        pages = {291-301},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1996A&AS..117..291B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1996SSRv...76..339H,
       author = {{Humphreys}, R.~M. and {Kemp}, S. and {Savonije}, G. and {van der Hucht}, K.~A. and {van der Kruit}, P.~C. and {Miley}, G. and {Bumba}, V. and {van Nieuwkoop}, J. and {van Hoolst}, T. and {Cox}, A. and {Rutten}, R.~J. and {Kleczek}, J. and {de Jager}, Cornelis and {Jerzykiewicz}, M. and {Zwaan}, C. and {Poedts}, S. and {Sakai}, Jun-Ichi and {Pecker}, J. -C. and {Heikkila}, W. and {de Jong}, T. and {Wilson}, P.~R. and {M{\"u}ller}, E.~A. and {Hoyng}, P. and {Icke}, V. and {Shore}, S.~N. and {Achterberg}, A. and {Lucchin}, F. and {Butcher}, H. and {Ne'Eman}, Y. and {Heidmann}, J. and {Belton}, M.~J.~S. and {de Graauw}, Th. and {Waters}, L.~B.~F.~M. and {Pacini}, F. and {Hultqvist}, B. and {Akasofu}, S. -I. and {Vial}, J. -C. and {Schatzman}, E. and {van der Laan}, H. and {Cole}, K.~D. and {Vanbeveren}, D. and {Southwood}, D. and {van der Klis}, M. and {Katgert}, Peter},
        title = "Book reviews",
      journal = {\ssr},
         year = 1996,
       volume = {76},
       number = {3-4},
        pages = {339-379},
          doi = {10.1007/BF00197844},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1996SSRv...76..339H},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1996AAS...188.7009J,
       author = {{Jordan}, S.~D. and {Garc{\'{\i}}a}, A. and {Bumba}, V.},
        title = "The Large Limb Event of July 9, 1982",
    booktitle = {AAS abstracts \#188},
         year = 1996,
       series = {AAS abstracts},
       volume = {188},
          eid = {70.09},
        pages = {70.09},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1996AAS...188.7009J},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1996joso.proc..144K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Semiempirical model of vector fields in a symmetrical sunspot.",
    booktitle = {JOSO Annu. Rep., 1995},
         year = 1996,
        pages = {144},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1996joso.proc..144K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1996joso.proc..143B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M. and {K{\'a}lm{\'a}n}, B.},
        title = "The role of magnetic and motion field singularities in the development of active regions and their flaring activities.",
    booktitle = {JOSO Annu. Rep., 1995},
         year = 1996,
        pages = {143},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1996joso.proc..143B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1995SoPh..160..245B,
       author = {{Bumba}, V{\'a}clav and {Klva{\v{n}}a}, Miroslav},
        title = "Doppler velocity measurements made with a scanning photoelectric magnetograph",
      journal = {\solphys},
         year = 1995,
       volume = {160},
       number = {2},
        pages = {245-275},
          doi = {10.1007/BF00732807},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1995SoPh..160..245B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1995A&A...298..923B,
       author = {{Bumba}, V. and {Klvana}, M. and {Sykora}, J.},
        title = "Coronal holes and their relation to the background and local magnetic fields.",
      journal = {\aap},
         year = 1995,
       volume = {298},
        pages = {923},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1995A&A...298..923B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1995A&AS..109..355B,
       author = {{Bumba}, V. and {Klvana}, M. and {Kalman}, B.},
        title = "NOAA 6850: an inactive delta-configuration and its magnetic and velocity fields.",
      journal = {\aaps},
         year = 1995,
       volume = {109},
        pages = {355-373},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1995A&AS..109..355B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1994SoPh..155..257B,
       author = {{Bumba}, V. and {Garc{\'{\i}}a}, A.},
        title = "Solar Zonal Average Magnetic Field and the Latitudes of Sunspot Groups",
      journal = {\solphys},
         year = 1994,
       volume = {155},
       number = {2},
        pages = {257-265},
          doi = {10.1007/BF00680595},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994SoPh..155..257B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1994SoPh..153..437B,
       author = {{Bumba}, V. and {Klvana}, M.},
        title = "Concerning the Solar Rotation Rates Estimated Using Tracers",
      journal = {\solphys},
         year = 1994,
       volume = {153},
       number = {1-2},
        pages = {437-440},
          doi = {10.1007/BF00712515},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994SoPh..153..437B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994soro.conf..131B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M.},
        title = "About some problems concerning the estimation of solar rotation.",
    booktitle = {Solar Rotation},
         year = 1994,
        pages = {131-132},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994soro.conf..131B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994smf..conf..225K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Contribution to the calibration of magnetic field measurements in the line Fe I 5250.2 {\r{A}}",
    booktitle = {Solar Magnetic Fields},
         year = 1994,
       editor = {{Sch{\"u}ssler}, Manfred and {Schmidt}, Wolfgang},
        pages = {225},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994smf..conf..225K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994smf..conf...74B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M.},
        title = "Doppler velocity measurements made with a photoelectric magnetograph",
    booktitle = {Solar Magnetic Fields},
         year = 1994,
       editor = {{Sch{\"u}ssler}, Manfred and {Schmidt}, Wolfgang},
        pages = {74},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994smf..conf...74B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994smf..conf...71K,
       author = {{Krivcova}, N. and {Krivcov}, A. and {Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Modelling of photospheric horizontal motions from Doppler velocity measurements",
    booktitle = {Solar Magnetic Fields},
         year = 1994,
       editor = {{Sch{\"u}ssler}, Manfred and {Schmidt}, Wolfgang},
        pages = {71},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994smf..conf...71K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994smf..conf...52B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M.},
        title = "How does the magnetic field of an active region develop?",
    booktitle = {Solar Magnetic Fields},
         year = 1994,
       editor = {{Sch{\"u}ssler}, Manfred and {Schmidt}, Wolfgang},
        pages = {52},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994smf..conf...52B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994scs..conf...65B,
       author = {{Bumba}, V. and {Klvana}, M. and {Rusin}, V. and {Rybansky}, M. and {Buyukliev}, C.~T.},
        title = "Formation of Coronal Holes and the Global Magnetic Field Distribution",
    booktitle = {IAU Colloq. 144: Solar Coronal Structures},
         year = 1994,
       editor = {{Rusin}, Vojtech and {Heinzel}, Petr and {Vial}, Jean-Claude},
        pages = {65-67},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994scs..conf...65B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994scs..conf...47B,
       author = {{Bumba}, V. and {Klvana}, M. and {Sykora}, I.},
        title = "Coronal Holes and Photospheric Magnetic Field",
    booktitle = {IAU Colloq. 144: Solar Coronal Structures},
         year = 1994,
       editor = {{Rusin}, Vojtech and {Heinzel}, Petr and {Vial}, Jean-Claude},
        pages = {47-51},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994scs..conf...47B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994imfm.conf..119K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Primary processing of data obtained by the Ond{\v{r}}ejov magnetograph.",
    booktitle = {Instrumentation for Magnetic Field Measurements},
         year = 1994,
        pages = {119-122},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994imfm.conf..119K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INCOLLECTION{1994LNP...432..141B,
       author = {{Bumba}, V{\'a}clav and {Klva{\v{n}}a}, Miroslav and {S{\'y}kora}, J{\'u}lius},
        title = "Magnetic fields surrounding coronal holes",
    booktitle = {Advances in Solar Physics},
         year = 1994,
       editor = {{Belvedere}, G. and {Rodono}, M. and {Simnett}, G.~M.},
       volume = {432},
        pages = {141-145},
          doi = {10.1007/3-540-58041-7\_211},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994LNP...432..141B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994ESOC...50..179K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V. and {Sobotka}, M.},
        title = "Processing of Images Acquired at the Ond{\v{r}}ejov Double Solar Refractor",
    booktitle = {European Southern Observatory Conference and Workshop Proceedings},
         year = 1994,
       series = {European Southern Observatory Conference and Workshop Proceedings},
       volume = {50},
        pages = {179},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994ESOC...50..179K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1994ESOC...50..173K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Data Acquisition and Processing with the Solar Magnetograph of The Ond{\v{r}}ejov Observatory",
    booktitle = {European Southern Observatory Conference and Workshop Proceedings},
         year = 1994,
       series = {European Southern Observatory Conference and Workshop Proceedings},
       volume = {50},
        pages = {173},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1994ESOC...50..173K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1993A&A...276..193B,
       author = {{Bumba}, V. and {Klvana}, M. and {Kalman}, B. and {Gyori}, L.},
        title = "Evolution, activity, magnetic fields, line-of-sight and proper motions in the solar active region NOAA 6659 (June 3-16, 1991)",
      journal = {\aap},
         year = 1993,
       volume = {276},
        pages = {193},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1993A&A...276..193B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1993Rise...74...64B,
       author = {{Bumba}, V.},
        title = "What is the origin of the active region on the Sun and on what depends its existence.",
      journal = {Rise Hvezd},
         year = 1993,
       volume = {74},
       number = {3},
        pages = {64-66},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1993Rise...74...64B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1993sova.conf...78K,
       author = {{Klva{\v{n}}a}, M. and {Bumba}, V.},
        title = "Photoelectrically measured oscillations in the photosphere.",
    booktitle = {Solar Variability},
         year = 1993,
        pages = {78-81},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1993sova.conf...78K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1993sova.conf...72B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M.},
        title = "Variations of the line-of-sight motions in the quiet and active photosphere.",
    booktitle = {Solar Variability},
         year = 1993,
        pages = {72-73},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1993sova.conf...72B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1993Ap&SS.199...45B,
       author = {{Bumba}, V. and {Klvana}, M.},
        title = "Questions Concerning the Existence of Sympathetic Flares",
      journal = {\apss},
         year = 1993,
       volume = {199},
       number = {1},
        pages = {45-52},
          doi = {10.1007/BF00612976},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1993Ap&SS.199...45B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1993ASPC...46..373B,
       author = {{Bumba}, V. and {Klvana}, M. and {Kalman}, B. and {Gyori}, L.},
        title = "Line-of-Sight and Proper Motions in the Flaring June 1991 (NOAA 6659) Active Region",
    booktitle = {IAU Colloq. 141: The Magnetic and Velocity Fields of Solar Active Regions},
         year = 1993,
       editor = {{Zirin}, Harold and {Ai}, Guoxiang and {Wang}, Haimin},
       series = {Astron.\ Soc.\ Pacific Conf.\ Ser.},
       volume = {46},
        pages = {373},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1993ASPC...46..373B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1993ASPC...46...32B,
       author = {{Bumba}, V. and {Klvana}, M.},
        title = "Doppler Motion in Active Regions and in the Surrounding Photosphere",
    booktitle = {IAU Colloq. 141: The Magnetic and Velocity Fields of Solar Active Regions},
         year = 1993,
       editor = {{Zirin}, Harold and {Ai}, Guoxiang and {Wang}, Haimin},
       series = {Astron.\ Soc.\ Pacific Conf.\ Ser.},
       volume = {46},
        pages = {32},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1993ASPC...46...32B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1992SoPh..141..203V,
       author = {{van Driel-Gesztelyi}, Lidia and {Bumba}, V. and {van Driel Gesztelyi}, L.},
        title = "Book Review: Opening the frontiers in solar research / Pergamon, 1991",
      journal = {\solphys},
         year = 1992,
       volume = {141},
       number = {1},
        pages = {203-204},
          doi = {10.1007/BF00155913},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1992SoPh..141..203V},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1992SoPh..141..203S,
       author = {{S{\'{a}}nchez}, I. and {Bumba}, V.},
        title = "Book Review: Solar observations: techniques and interpretation / Cambridge U Press, 1991",
      journal = {\solphys},
         year = 1992,
       volume = {141},
       number = {1},
        pages = {203},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1992SoPh..141..203S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1991BAICz..42..381B,
       author = {{Bumba}, V.},
        title = "Solar Active Longitudes Recurring Every 28-29 Days. Acting Differently in Low and Higher Latitudes",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1991,
       volume = {42},
        pages = {381},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1991BAICz..42..381B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1991BAICz..42..250S,
       author = {{Sobotka}, M. and {Simberova}, S. and {Bumba}, V.},
        title = "Photometry of the Umbral Structure of a Fast-developing Sunspot",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1991,
       volume = {42},
        pages = {250},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1991BAICz..42..250S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1991BAICz..42..161B,
       author = {{Bumba}, V.},
        title = "Is the recurrent enhanced geomagnetic activity preceding the sunspot minimum related to magnetic fields of the new or old activity cycle?",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1991,
       volume = {42},
       number = {3},
        pages = {161-165},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1991BAICz..42..161B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1991BAICz..42...85B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "A new index of recurrence for long-lasting enhanced geomagnetic activity.",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1991,
       volume = {42},
       number = {2},
        pages = {85-90},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1991BAICz..42...85B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1991BAICz..42...76B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Low-latitude Active Longitudes on the Sun and in Interplanetary Space",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1991,
       volume = {42},
        pages = {76},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1991BAICz..42...76B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990SSRv...54R.450W,
       author = {{Wentzel}, D.~G. and {Bumba}, V.},
        title = "Book-Review - the Restless Sun",
      journal = {\ssr},
         year = 1990,
       volume = {54},
        pages = {450},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990SSRv...54R.450W},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990SSRv...54..451B,
       author = {{Bumba}, V.},
        title = "Book Review: The restless sun / Smithsonian Institution Press, 1989",
      journal = {\ssr},
         year = 1990,
       volume = {54},
        pages = {451},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990SSRv...54..451B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990BAICz..41..325B,
       author = {{Bumba}, V.},
        title = "Do Polar Faculae Terminate or Commence an Extended Cycle of Solar Activity?",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1990,
       volume = {41},
        pages = {325},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990BAICz..41..325B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990Ge&Ae..30..669B,
       author = {{Bumba}, V. and {Heina}, L.},
        title = "The new index of recurrence of high geomagnetic activity and its relation to the solar activity cycle.",
      journal = {Geomagnetism and Aeronomy},
         year = 1990,
       volume = {30},
        pages = {669-671},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990Ge&Ae..30..669B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990Ge&Ae..30..550B,
       author = {{Bumba}, V. and {Heina}, L.},
        title = "Active longitudes on the Sun and their manifestation in interplanetary space.",
      journal = {Geomagnetism and Aeronomy},
         year = 1990,
       volume = {30},
        pages = {550-553},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990Ge&Ae..30..550B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990Ap&SS.170...85B,
       author = {{Bumba}, V. and {Hejna}, L. and {Rusin}, V. and {Rybansky}, M.},
        title = "The Basic Cycle of Solar Activity and the Global Magnetic Field and Active Phenomena Distribution",
      journal = {\apss},
         year = 1990,
       volume = {170},
       number = {1-2},
        pages = {85-89},
          doi = {10.1007/BF00652650},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990Ap&SS.170...85B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990SoPh..128..253B,
       author = {{Bumba}, Vaclav and {Rusin}, Vojtech and {Rybansky}, Milan},
        title = "Large-scale distribution of magnetic fields, green corona and prominences during an extended activity cycle",
      journal = {\solphys},
         year = 1990,
       volume = {128},
       number = {1},
        pages = {253-259},
          doi = {10.1007/BF00154161},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990SoPh..128..253B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990BAICz..41Q.271B,
       author = {{Bumba}, V.},
        title = "Book Review: Cool stars, stellar systems and the sun. / Springer-Verlag, 1987",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1990,
       volume = {41},
       number = {4},
        pages = {271},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990BAICz..41Q.271B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990BAICz..41..253B,
       author = {{Bumba}, V. and {Rusin}, V. and {Rybansky}, M.},
        title = "Green Corona, Prominences and Magnetic Fields Latitudinal Distribution During an Extended Cycle of Activity",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1990,
       volume = {41},
        pages = {253},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990BAICz..41..253B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990Ge&Ae..30..565B,
       author = {{Bumba}, V. and {Heina}, L.},
        title = "A new index for the recurrence of high geomagnetic activity and the relationship between this index and the solar activity cycle.",
      journal = {Geomagnetism and Aeronomy},
         year = 1990,
       volume = {30},
       number = {4},
        pages = {565-567},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990Ge&Ae..30..565B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990Ge&Ae..30..465B,
       author = {{Bumba}, V. and {Heina}, L.},
        title = "Active longitudes on the Sun and their reflection in interplanetary space.",
      journal = {Geomagnetism and Aeronomy},
         year = 1990,
       volume = {30},
       number = {4},
        pages = {465-467},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990Ge&Ae..30..465B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990PDHO....7...92B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Solar Active Longitudes and their Possible Relation to the Regular Large-Scale Patterns of the Solar Magnetic Fields",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1990,
       volume = {7},
        pages = {92-95},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990PDHO....7...92B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990PDHO....7...84B,
       author = {{Bumba}, V. and {Sobotka}, M. and {{\v{S}}imberov{\'a}}, S.},
        title = "Photometry of the Internal Structure of a Large Umbra",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1990,
       volume = {7},
        pages = {84-87},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990PDHO....7...84B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1990PDHO....7...48S,
       author = {{Sattarov}, I. and {Bumba}, V.},
        title = "On Motions of Magnetic Fields and Induction of Activity Centers",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1990,
       volume = {7},
        pages = {48-49},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1990PDHO....7...48S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1989BAICz..40...17B,
       author = {{Bumba}, V.},
        title = "The Patterns of the Twenty Two-Year Cycle of Solar Activity in Sunspots Statistics and in the Global Magnetic Field and Activity Distribution",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1989,
       volume = {40},
        pages = {17},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1989BAICz..40...17B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39..363B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Some Problems Concerning the Regularities in the Development of the Latitudinal Distribution of Solar Magnetic Fields",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
        pages = {363},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39..363B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39..355B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "A Cumulative Method of Presentation of Solar Activity Secular Changes",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
        pages = {355},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39..355B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@PROCEEDINGS{1988bang.iafcQ....B,
        title = "Geophysical consequences of solar magnetic field global distribution and changes",
    booktitle = {Bangalore International Astronautical Federation Congress},
         year = 1988,
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988bang.iafcQ....B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39..315B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "A Cumulative (Alternating) Method of Presentation of the Twenty Two-Year Periodicity of Solar Activity",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
        pages = {315},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39..315B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39..129B,
       author = {{Bumba}, V.},
        title = "What is a ``Centre of Magnetic Activity''",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
        pages = {129},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39..129B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39..128B,
       author = {{Bumba}, V.},
        title = "Book Review: Interstellar magnetic fields : Observation and theory. / Springer-Verlag, 1987.",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
       number = {2},
        pages = {128},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39..128B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39...86B,
       author = {{Bumba}, V. and {Geztelyi}, L.},
        title = "Formation of the White-light Flare Region of April 1984 (NOAA 4474) within the 21st Cycle of Solar Activity",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
        pages = {86},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39...86B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39....8B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Solar Flare Activity Changes and Global Magnetic Field Disturbances",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
        pages = {8},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39....8B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1988BAICz..39....1B,
       author = {{Bumba}, V. and {Gesztelyi}, L.},
        title = "Solar Global Background Magnetic Field Changes Accompanying the Development of the White-Light Flare Region of April 1984 (NOAA 4474)",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1988,
       volume = {39},
        pages = {1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1988BAICz..39....1B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987BAICz..38..351B,
       author = {{Bumba}, V. and {Gesztelyi}, L.},
        title = "Rotation of Individual Background Magnetic Field Components During the Formation of the White-Light Flare Region of April 1984 (NOAA 4474)",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1987,
       volume = {38},
        pages = {351},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987BAICz..38..351B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987SoPh..110..109B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Observation of Solar Differential Rotation with the Aid of Magnetic Tracers",
      journal = {\solphys},
         year = 1987,
       volume = {110},
       number = {1},
        pages = {109-113},
          doi = {10.1007/BF00148206},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987SoPh..110..109B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987SoPh..110...51B,
       author = {{Bumba}, V.},
        title = "Does the large-scale solar magnetic field distribution really reflect the convective velocity fields?",
      journal = {\solphys},
         year = 1987,
       volume = {110},
       number = {1},
        pages = {51-57},
          doi = {10.1007/BF00148201},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987SoPh..110...51B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987BAICz..38...92B,
       author = {{Bumba}, V.},
        title = "Search for Giant Elements of Convection with the Aid of Magnetic Tracers",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1987,
       volume = {38},
        pages = {92},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987BAICz..38...92B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987PAICz..66..129B,
       author = {{Bumba}, V. and {Hejna}, L. and {Gesztelyi}, L.},
        title = "High flare activity and redistribution of solar global magnetic fields.",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1987,
       volume = {1},
        pages = {129-133},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987PAICz..66..129B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987PAICz..66...59B,
       author = {{Bumba}, V.},
        title = "Does the local dynamo act in sunspot groups?",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1987,
       volume = {1},
        pages = {59-63},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987PAICz..66...59B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987PAICz..66....3B,
       author = {{Bumba}, V.},
        title = "Magnetic fields of the sun and stars.",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1987,
       volume = {1},
        pages = {3-10},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987PAICz..66....3B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987PAICz..65.....P,
       author = {{Perek}, L. and {Zav{\v{r}}el}, J. and {{\v{R}}{\'\i}man}, J. and {Bumba}, V. and {Lindblad}, P.~O. and {Huber}, M.~C.~E.},
        title = "10th European Regional Astronomy Meeting of the IAU, held in Praha, Czechoslovakia, 24 - 29 August 1987. Programme of the Meeting and Directory to the Proceedings.",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1987,
       volume = {65},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987PAICz..65.....P},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1987BAICz..38...29B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Solar Differential Rotation Reflected in the Distribution of Background Magnetic Fields",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1987,
       volume = {38},
        pages = {29},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1987BAICz..38...29B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@PROCEEDINGS{1986inns.iafcQ....P,
        title = "Scientific mission to asteroid Phaethon",
    booktitle = {Innsbruck International Astronautical Federation Congress},
         year = 1986,
       adsurl = {https://ui.adsabs.harvard.edu/abs/1986inns.iafcQ....P},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1986BAICz..37..281B,
       author = {{Bumba}, V.},
        title = "Magnetic Field and Photospheric Development of a Particular Sunspot Group from June 1963",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1986,
       volume = {37},
        pages = {281},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1986BAICz..37..281B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1986BAICz..37..219B,
       author = {{Bumba}, V. and {K{\'a}lm{\'a}n}, B. and {Klva{\v{n}}a}, M. and {Suda}, J.},
        title = "Kinematics of the May 1981 Flare Complex's Magnetic Field Decrease (H. R. 17 644)",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1986,
       volume = {37},
        pages = {219},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1986BAICz..37..219B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1986BAICz..37..210B,
       author = {{Bumba}, V.},
        title = "Formation of the May 1981 Solar Flare Complex and the Global Magnetic Field of the Sun (H. R. 17 644)",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1986,
       volume = {37},
        pages = {210},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1986BAICz..37..210B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1986KosIs..24..147G,
       author = {{Galeev}, A.~A. and {Bumba}, V. and {Vajsberg}, O.~L. and {Fischer}, S. and {Zastenker}, G.~N.},
        title = "Project INTERSHOCK - investigation of the fine structure of shock waves in cosmic plasma - aims, problems, methods.",
      journal = {Kosmicheskie Issledovaniia},
         year = 1986,
       volume = {24},
       number = {2},
        pages = {147-150},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1986KosIs..24..147G},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1986CoSka..15..495B,
       author = {{Bumba}, V.},
        title = "Solar local magnetic fields and their relations to the background fields",
      journal = {Contributions of the Astronomical Observatory Skalnate Pleso},
         year = 1986,
       volume = {15},
        pages = {495},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1986CoSka..15..495B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1986CoSka..15...49B,
       author = {{Bumba}, V.},
        title = "Main phases of active region's magnetic field development",
      journal = {Contributions of the Astronomical Observatory Skalnate Pleso},
         year = 1986,
       volume = {15},
        pages = {49},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1986CoSka..15...49B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1985BAICz..36..177B,
       author = {{Bumba}, V.},
        title = "Characteristic Patterns of Solar Magnetic Fields Around the Positions of Flares with Enhanced Helium-3 Abundance",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1985,
       volume = {36},
        pages = {177},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1985BAICz..36..177B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1985inpr.conf...12B,
       author = {{Bumba}, V. and {Galeev}, A.},
        title = "Scientific objectives of the Intershock project.",
    booktitle = {Intershock Project},
         year = 1985,
        pages = {12-20},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1985inpr.conf...12B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1984BAICz..35..224B,
       author = {{Bumba}, V. and {Suda}, J.},
        title = "Processes Observable in the Photosphere During the Formation of an Active Region. 3. Development of an Active Region at the Edge of an Older Bipolar Magnetic Field",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1984,
       volume = {35},
        pages = {224},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1984BAICz..35..224B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1984BAICz..35...28B,
       author = {{Bumba}, V. and {Suda}, J.},
        title = "Processes observable in the photosphere during the formation of an active region. II - Development of a usual active region; growth of a SPOT penumbra",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1984,
       volume = {35},
       number = {1},
        pages = {28-39},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1984BAICz..35...28B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1984StCeF..36..438B,
       author = {{Bumba}, V.},
        title = "Solar and stellar activities.",
      journal = {Studii si Cercetari de Fizica},
         year = 1984,
       volume = {36},
       number = {5},
        pages = {438-447},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1984StCeF..36..438B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1984Rise...65..148B,
       author = {{Bumba}, V.},
        title = "L. Perek, 65th birthday.",
      journal = {Rise Hvezd},
         year = 1984,
       volume = {65},
       number = {7},
        pages = {148},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1984Rise...65..148B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1983BAICz..34..349B,
       author = {{Bumba}, V. and {Suda}, J.},
        title = "Processes Observable in the Photosphere During the Formation of an Active Region. 1. Development of a Very Small, Secondary Active Region",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1983,
       volume = {34},
        pages = {349},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1983BAICz..34..349B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1983BAICz..34..219B,
       author = {{Bumba}, V.},
        title = "How Does the Magnetic Field of an Usual Active Region Develop?",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1983,
       volume = {34},
        pages = {219},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1983BAICz..34..219B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1983BAICz..34..155B,
       author = {{Bumba}, V. and {Suda}, J.},
        title = "The Problem of Field Geometry in Sunspots",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1983,
       volume = {34},
        pages = {155},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1983BAICz..34..155B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1983PDHO....5...47B,
       author = {{Bumba}, V.},
        title = "Proper motions observed in active regions.",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1983,
       volume = {5},
        pages = {47-69},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1983PDHO....5...47B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1983BAICz..34...29B,
       author = {{Bumba}, V. and {Suda}, J.},
        title = "Development of Sunspots in the Colliding Magnetic Fields of the June - July 1974 Proton-Flare Group",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1983,
       volume = {34},
        pages = {29},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1983BAICz..34...29B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1983AN....304....7B,
       author = {{Bumba}, V.},
        title = "Observable physical effects during new solar active regions formations",
      journal = {Astronomische Nachrichten},
         year = 1983,
       volume = {304},
       number = {1},
        pages = {7-12},
          doi = {10.1002/asna.2113040103},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1983AN....304....7B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982BAICz..33..321B,
       author = {{Bumba}, V. and {Klva{\v{n}}a}, M. and {Tom{\'a}{\v{s}}ek}, P.},
        title = "Magnetic Field Development in an Isolated Active Region (McMath No. 13 736)",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1982,
       volume = {33},
        pages = {321},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982BAICz..33..321B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982BAICz..33..281B,
       author = {{Bumba}, V.},
        title = "June-July 1974 Proton-Flare Region. IV. The Dynamics of the Local Magnetic Field Evolution during the Proton-Flare Events Rotation",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1982,
       volume = {33},
        pages = {281},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982BAICz..33..281B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982BAICz..33..215B,
       author = {{Bumba}, V.},
        title = "June-July 1974 Proton-Flare Region. III. The Geomagnetic Activity During the Declining Phase of the Complex Process",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1982,
       volume = {33},
        pages = {215},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982BAICz..33..215B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982BAICz..33..160B,
       author = {{Bumba}, V. and {Hejna}, L. and {Yen}, Le Bach},
        title = "June - July 1974 Proton-Flare Region II. Regularities in the Magnetic Field Area and Related Sunspot and Flare-Activity Development",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1982,
       volume = {33},
        pages = {160},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982BAICz..33..160B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982BAICz..33...36B,
       author = {{Bumba}, V. and {Klvana}, M. and {Pflug}, K.},
        title = "Solar Active Region SD 55/1975 in the Frame of the Background Magnetic Field Development",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1982,
       volume = {33},
        pages = {36},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982BAICz..33...36B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982SSRv...32..229B,
       author = {{Bumba}, V.},
        title = "Development of Solar Energetic Particle Sources Within the Background Magnetic Fields",
      journal = {\ssr},
         year = 1982,
       volume = {32},
       number = {1-2},
        pages = {229-233},
          doi = {10.1007/BF00225186},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982SSRv...32..229B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1982coas.conf...81B,
       author = {{Bumba}, V.},
        title = "Solar Magnetic Fields and Activity",
    booktitle = {Compendium in Astronomy, Cosmology and Astrophysics},
         year = 1982,
       editor = {{Terzian}, Yervant and {Bilson}, Elizabeth M.},
        pages = {81},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982coas.conf...81B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982IAUTA..18...55B,
       author = {{Bumba}, V.},
        title = "Solar Activity",
      journal = {Transactions of the International Astronomical Union, Series A},
         year = 1982,
       volume = {18A},
        pages = {55},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982IAUTA..18...55B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1982HvaOB...6..101B,
       author = {{Bumba}, V.},
        title = "Significance of observations for modeling of sunspots and their groups development",
      journal = {Hvar Observatory Bulletin},
         year = 1982,
       volume = {6},
       number = {1},
        pages = {101},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1982HvaOB...6..101B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1981BAICz..32..349B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "June-July 1974 Proton-Flare Region. I. Individual Stages of Its Background and Local Magnetic Field Development",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1981,
       volume = {32},
        pages = {349},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1981BAICz..32..349B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1981BAICz..32..286B,
       author = {{Bumba}, V. and {Suda}, J. and {Ishkov}, V.~N.},
        title = "Links of H{\ensuremath{\alpha}}-Emission Features with the Underlying Elements of Sunspot Fine Structures in Some Flares",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1981,
       volume = {32},
        pages = {286},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1981BAICz..32..286B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1981BAICz..32..129B,
       author = {{Bumba}, V.},
        title = "Beginning Stages of Local Magnetic Field Formation",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1981,
       volume = {32},
        pages = {129},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1981BAICz..32..129B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1980tpmb.meet...35B,
       author = {{Bumba}, V. and {Tomasek}, P.},
        title = "Initial phase of the development of the magnetic field of an active region in the photosphere",
    booktitle = {Scientific Seminar on the Theory and Practice of Magnetographic Observations of the Sun, Irkutsk},
         year = 1980,
       volume = {13},
        pages = {35-56},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1980tpmb.meet...35B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1980Vesmi..59....1B,
       author = {{Bumba}, V. and {Kres{\'a}k}, L'. and {Kr{\'\i}z}, S. and {Van{\'y}sek}, V.},
        title = "17th General Assembly of the IAU and the actual aims of astronomy.",
      journal = {Vesmir},
         year = 1980,
       volume = {59},
        pages = {1-5},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1980Vesmi..59....1B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1980BAICz..31..351B,
       author = {{Bumba}, V.},
        title = "August 1972 Proton-flare Region and Different Phases of Its Background Magnetic Field Development",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1980,
       volume = {31},
        pages = {351},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1980BAICz..31..351B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1980BAICz..31..257B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Some Peculiarities in the Development of the Large August 1972 Sunspot Group",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1980,
       volume = {31},
        pages = {257},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1980BAICz..31..257B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1980BAICz..31..101B,
       author = {{Bumba}, V. and {Suda}, J.},
        title = "Internal Structure of Sunspot Umbrae",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1980,
       volume = {31},
        pages = {101},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1980BAICz..31..101B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1979psa..conf...50B,
       author = {{Bumba}, V.},
        title = "Large-scale solar magnetic fields.",
    booktitle = {Problems of Solar Activity},
         year = 1979,
        pages = {50-74},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1979psa..conf...50B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@PROCEEDINGS{1979psa..conf.....B,
        title = "Problems of solar activity",
    booktitle = {Problems of Solar Activity},
         year = 1979,
       adsurl = {https://ui.adsabs.harvard.edu/abs/1979psa..conf.....B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@BOOK{1979aica.book.....B,
       author = {{Bumba}, V.},
        title = "The Astronomical Institute of the Czechoslovak Academy of Sciences.",
         year = 1979,
       adsurl = {https://ui.adsabs.harvard.edu/abs/1979aica.book.....B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1978SSRv...22..213R,
       author = {{Roberts}, Paul H. and {Scholer}, Manfred and {de Jager}, C. and {Ceplecha}, Zden{\v{e}}k and {Grewing}, M. and {Kres{\'a}k}, L. and {Bumba}, V{\'a}clav and {Pottasch}, S.~R. and {Sehnal}, L. and {Pagel}, Bernard and {Reijnen}, G.~C.~M. and {Ness}, Norman F. and {de Jager}, Cornelis},
        title = "Book reviews",
      journal = {\ssr},
         year = 1978,
       volume = {22},
       number = {2},
        pages = {213-218},
          doi = {10.1007/BF00212074},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1978SSRv...22..213R},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1978Rise...59....1B,
       author = {{Bumba}, V.},
        title = "Astronomical Institute of the Czechoslovak Academy of Sciences.",
      journal = {Rise Hvezd},
         year = 1978,
       volume = {59},
        pages = {1-3},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1978Rise...59....1B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1977PDHO....3..305M,
       author = {{Martini}, L. and {Jakimiec}, J. and {Tindo}, I.~P. and {Bumba}, V. and {Dezs{\"o}}, L.},
        title = "Results of investigations on solar physics within the frame of the Intercosmos programs.",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1977,
       volume = {3},
        pages = {305-310},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1977PDHO....3..305M},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1977PDHO....3..161B,
       author = {{Bumba}, V. and {Hejna}, L. and {Bach Yen}, Le},
        title = "The main characteristics of magnetic field developments responsible for the formation of the July 1974 proton-flare region.",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1977,
       volume = {3},
        pages = {161-187},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1977PDHO....3..161B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1977PDHO....3..111B,
       author = {{Bumba}, V. and {Hejna}, L.},
        title = "Individual phases in the August 1972 proton-flare region development.",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1977,
       volume = {3},
        pages = {111-136},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1977PDHO....3..111B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1977IzKry..56..188B,
       author = {{Bumba}, V.},
        title = "On the origin of active regions. Magnetographic observations.",
      journal = {Izvestiya Ordena Trudovogo Krasnogo Znameni Krymskoj Astrofizicheskoj Observatorii},
         year = 1977,
       volume = {56},
        pages = {188-198},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1977IzKry..56..188B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1977HvaOB...1...15A,
       author = {{Ambroz}, P. and {Bumba}, V. and {Havlicek}, K. and {Ptacek}, J. and {Suda}, J.},
        title = "Solar double telescope at the Hvar Observatory",
      journal = {Hvar Observatory Bulletin},
         year = 1977,
       volume = {1},
       number = {1},
        pages = {15},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1977HvaOB...1...15A},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1976veao.conf...59B,
       author = {{Bumba}, V. and {Klvana}, M. and {Suda}, J.},
        title = "The initial phases of sunspot group development.",
    booktitle = {Vozniknovenie i Ehvol. Aktiv. Obl. na Solntse},
         year = 1976,
        pages = {59-63},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976veao.conf...59B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INCOLLECTION{1976str..book..231B,
       author = {{Bumba}, V. and {Sykora}, J.},
        title = "Large-scale magnetic structures and the longitudinal distribution of the green coronal emission.",
    booktitle = {Solar Activity and Solar-Terrestrial Relations},
         year = 1976,
        pages = {231-233},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976str..book..231B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INCOLLECTION{1976str..book...15A,
       author = {{Ambroz}, P. and {Bumba}, V. and {Suda}, J.},
        title = "Some characteristics of the magnetic field and photospheric structure development in the August 1972 proton-flare region.",
    booktitle = {Solar Activity and Solar-Terrestrial Relations},
         year = 1976,
        pages = {15-21},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976str..book...15A},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INCOLLECTION{1976ip...book..102B,
       author = {{Bishoff}, K. and {Bumba}, V. and {Vainshtein}, L.~A. and {Valnicek}, B. and {Gerlen}, O. and {Gogosheva}, Ts. and {Grineva}, Iu. I. and {Dezhe}, L. and {Dertianosh}, D. and {Zhitnik}, I.~A.},
        title = "Investigation of solar short-wavelength radiation and solar activity",
    booktitle = {The Intercosmos Program},
         year = 1976,
        pages = {102-129},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976ip...book..102B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1976fsp..conf..123B,
       author = {{Bumba}, V.},
        title = "Dynamics of sunspot development.",
    booktitle = {Fiz. Soln. Pyaten. Moskva},
         year = 1976,
        pages = {123-132},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976fsp..conf..123B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1976fsp..conf...49B,
       author = {{Bumba}, V. and {Klvana}, M. and {Suda}, J.},
        title = "Light-bridges and the distribution of the magnetic field polarity in sunspot groups.",
    booktitle = {Fiz. Soln. Pyaten. Moskva},
         year = 1976,
        pages = {49-53},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976fsp..conf...49B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1976IAUS...71...47B,
       author = {{Bumba}, V.},
        title = "Large-Scale Solar Magnetic Fields",
    booktitle = {Basic Mechanisms of Solar Activity},
         year = 1976,
       editor = {{Bumba}, Vaclav and {Kleczek}, Josip},
       volume = {71},
        pages = {47},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976IAUS...71...47B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@PROCEEDINGS{1976IAUS...71.....B,
        title = "Basic mechanisms of solar activity, proceedings from IAU Symposium no. 71 held in Prague, Czechoslovakia, 25-29 August 1975.",
    booktitle = {Basic Mechanisms of Solar Activity},
         year = 1976,
       volume = {71},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976IAUS...71.....B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1976CoSka...6..231B,
       author = {{Bumba}, V. and {S{\'y}kora}, J.},
        title = "Large-scale magnetic structures and the longitudinal distribution of the green coronal emission",
      journal = {Contributions of the Astronomical Observatory Skalnate Pleso},
         year = 1976,
       volume = {6},
        pages = {231},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976CoSka...6..231B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1976CoSka...6...15A,
       author = {{Ambro{\v{z}}}, P. and {Bumba}, V. and {Suda}, J.},
        title = "Some characteristics of the magnetic field and photospheric structure development in the August 1972 proton-flare region",
      journal = {Contributions of the Astronomical Observatory Skalnate Pleso},
         year = 1976,
       volume = {6},
        pages = {15},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976CoSka...6...15A},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1976BAICz..27..257B,
       author = {{Bumba}, V. and {Klvana}, M. and {Macak}, P.},
        title = "Horizontal Instrument for Solar Magnetic and Velocity Field Measurements",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1976,
       volume = {27},
        pages = {257},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976BAICz..27..257B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1976BAICz..27..217B,
       author = {{Bumba}, V. and {Hrebik}, F. and {Suda}, J.},
        title = "Conditions for Solar Observations at the Ond{\v{r}}ejov Observatory",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1976,
       volume = {27},
        pages = {217},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976BAICz..27..217B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1976BAICz..27..153B,
       author = {{Bumba}, V.},
        title = "Relations between the Solar and Interplanetary Magnetic Field Distributions",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1976,
       volume = {27},
        pages = {153},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976BAICz..27..153B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1976BAICz..27...74B,
       author = {{Bumba}, V.},
        title = "A Note on Recurrences in the Magnetic Field Distribution during the Present Cycle of Solar Activity",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1976,
       volume = {27},
        pages = {74},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1976BAICz..27...74B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1975cesra...5...98B,
       author = {{Bumba}, V.},
        title = "Scientific cooperation of solar physicists in socialistic countries",
    booktitle = {CESRA-5, Committee of European Solar Radio Astronomers},
         year = 1975,
       editor = {{Chiuderi}, C. and {Landini}, M. and {Righini}, A.},
       volume = {5},
        pages = {98},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1975cesra...5...98B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1975POBeo..20...35B,
       author = {{Bumba}, V.},
        title = "Concerning some actual problems in the observational solar research.",
      journal = {Publications de l'Observatoire Astronomique de Beograd},
         year = 1975,
       volume = {20},
        pages = {35-45},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1975POBeo..20...35B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1975MmArc.105...98B,
       author = {{Bumba}, V.},
        title = "Scientific cooperation of solar physicists in socialistic countries.",
      journal = {Osservazioni e memorie dell'Osservatorio astrofisico di Arcetri},
         year = 1975,
       volume = {105},
        pages = {98-101},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1975MmArc.105...98B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1975BAICz..26..315B,
       author = {{Bumba}, V. and {Hejna}, L. and {Suda}, J.},
        title = "Granular-like pattern in sunspot umbrae.",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1975,
       volume = {26},
       number = {5},
        pages = {315},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1975BAICz..26..315B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1974IAUS...57...73B,
       author = {{Bumba}, V. and {S{\'y}kora}, J.},
        title = "Large-Scale Magnetic Structures Responsible for Coronal Disturbances (presented by V. Bumba)",
    booktitle = {Coronal Disturbances},
         year = 1974,
       editor = {{Newkirk}, Gordon Allen},
       volume = {57},
        pages = {73},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1974IAUS...57...73B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1974IAUS...56..183B,
       author = {{Bumba}, V. and {Ambroz}, P.},
        title = "The Relation Between Chromospheric and Photospheric Structures in Sunspot Groups",
    booktitle = {Chromospheric Fine Structure},
         year = 1974,
       editor = {{Athay}, R. Grant},
       volume = {56},
        pages = {183},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1974IAUS...56..183B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1973spre.conf..803B,
       author = {{Bumba}, V. and {S{\'y}kora}, J.},
        title = "Particle emitting flares and the large-scale distribution of solar magnetic fields and green corona.",
    booktitle = {Space Research Conference},
         year = 1973,
       volume = {2},
        pages = {803-808},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1973spre.conf..803B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1973saa..conf....9B,
       author = {{Bumba}, V.},
        title = "The sun as a star.",
    booktitle = {Conference on Stellar Astronomy and Astrophysics},
         year = 1973,
        pages = {9-13},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1973saa..conf....9B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1973SZFiz...3..222B,
       author = {{Bumba}, V. and {Suda}, Ya.},
        title = "The dominating role of convection in the development of solar activity centers.",
      journal = {Solnechno-zemn. fizika},
         year = 1973,
       volume = {3},
        pages = {222-230},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1973SZFiz...3..222B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1973BAICz..24...22B,
       author = {{Bumba}, V. and {Ranzinger}, P. and {Suda}, J.},
        title = "Photospheric Convective Network as a Determining Factor in Sun-spot and Group Development and Stabilization",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1973,
       volume = {24},
        pages = {22},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1973BAICz..24...22B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1972spen.conf...19B,
       author = {{Bumba}, V. and {Krivsky}, L. and {Tlamicha}, A. and {Sykora}, J. and {Halenka}, J. and {Lastovicka}, J. and {Triska}, P. and {Pinter}, S.},
        title = "Typical Characteristics of the Active Region With Proton Flare Behind the Limb (2 November 1969) and Accompanying Effects",
    booktitle = {Solar Partical Event of November 1969},
         year = 1972,
       editor = {{Ulwick}, James C.},
        pages = {19},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1972spen.conf...19B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1972sstp.conf...21B,
       author = {{Bumba}, V.},
        title = "Large-scale magnetic fields and activity patterns on the sun.",
    booktitle = {The Sun: Part I of Solar-Terrestrial Physics/1970},
         year = 1972,
        pages = {21-37},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1972sstp.conf...21B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1972SZFiz...3..231B,
       author = {{Bumba}, V. and {Sykora}, J.},
        title = "The connection of large-scale distribution of solar magnetic fields and coronal features with large flares and the solar wind.",
      journal = {Solnechno-zemn. fizika},
         year = 1972,
       volume = {3},
        pages = {231-241},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1972SZFiz...3..231B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INCOLLECTION{1972NASSP.308..151B,
       author = {{Bumba}, V.},
        title = "Solar Large-Scale Positive Polarity Magnetic Fields and Geomagnetic Disturbances",
    booktitle = {NASA Special Publication},
         year = 1972,
       editor = {{Sonett}, Charles P. and {Coleman}, Paul Jerome and {Wilcox}, John Marsh},
       volume = {308},
        pages = {151},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1972NASSP.308..151B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INCOLLECTION{1972NASSP.308...31B,
       author = {{Bumba}, V.},
        title = "Large-Scale Negative Polarity Magnetic Fields on the Sun and Particle-Emitting Flares",
    booktitle = {NASA Special Publication},
         year = 1972,
       editor = {{Sonett}, Charles P. and {Coleman}, Paul Jerome and {Wilcox}, John Marsh},
       volume = {308},
        pages = {31},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1972NASSP.308...31B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1972BAICz..23...85B,
       author = {{Bumba}, V. and {K{\v{r}}ivsk{\'y}}, L. and {S{\'y}kora}, J.},
        title = "Development and spatial structure of proton flares near the limb and coronal phenomena. IV. Proton flare on November 2, 1969 and its active region",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1972,
       volume = {23},
        pages = {85},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1972BAICz..23...85B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1972ASSL...29...21B,
       author = {{Bumba}, V.},
        title = "Large-Scale Magnetic Fields and Activity Patterns on the Sun",
    booktitle = {The Sun.  Part 1 of Solar-Terrestrial Physics/1970},
         year = 1972,
       editor = {{de Jager}, C. and {Dyer}, E.~R.},
       series = {Astrophysics and Space Science Library},
       volume = {29},
        pages = {21},
          doi = {10.1007/978-94-010-3126-4\_3},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1972ASSL...29...21B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1971PDHO....2...21B,
       author = {{Bumba}, V. and {Suda}, J. and {Ranzinger}, P.},
        title = "Role of the Convective Network in the Development of Sunspots, Sunspot Groups and Flares",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1971,
       volume = {2},
        pages = {21-28},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1971PDHO....2...21B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1971PDHO....2...13B,
       author = {{Bumba}, V.},
        title = "Large Scale Regularities in Solar Magnetic Field Distribution and Occurence of Large Flares",
      journal = {Publications of Debrecen Heliophysical Observatory},
         year = 1971,
       volume = {2},
        pages = {13-20},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1971PDHO....2...13B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1971IAUS...43..696A,
       author = {{Ambroz}, P. and {Bumba}, V. and {Howard}, R. and {S{\'y}kora}, J.},
        title = "Opposite Polarities in the Development of Some Regularities in the Distribution of Large-Scale Magnetic Fields",
    booktitle = {Solar Magnetic Fields},
         year = 1971,
       editor = {{Howard}, Robert},
       volume = {43},
        pages = {696},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1971IAUS...43..696A},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1971IAUS...43..201B,
       author = {{Bumba}, V. and {Suda}, J.},
        title = "Some Remarks on the Statics and Dynamics of Magnetic Field Structure Development in Active Regions",
    booktitle = {Solar Magnetic Fields},
         year = 1971,
       editor = {{Howard}, Robert},
       volume = {43},
        pages = {201},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1971IAUS...43..201B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1970SoPh...14...80B,
       author = {{Bumba}, V.},
        title = "Concerning the Formation of Giant Regular Structures in the Solar Atmosphere",
      journal = {\solphys},
         year = 1970,
       volume = {14},
       number = {1},
        pages = {80-88},
          doi = {10.1007/BF00240162},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1970SoPh...14...80B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1969SoPh....7...28B,
       author = {{Bumba}, V. and {Howard}, R.},
        title = "Solar Activity and Recurrences in Magnetic-Field Distribution",
      journal = {\solphys},
         year = 1969,
       volume = {7},
       number = {1},
        pages = {28-38},
          doi = {10.1007/BF00148402},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969SoPh....7...28B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1969sfsr.conf..397H,
       author = {{Howard}, R. and {Bumba}, V.},
        title = "On forecasts of interplanetary and geophysical conditions",
    booktitle = {Solar Flares and Space Research},
         year = 1969,
       editor = {{de Jager}, C. and {Svestka}, Z.},
       volume = {11},
        pages = {397},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969sfsr.conf..397H},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1969sfsr.conf..387B,
       author = {{Bumba}, V. and {Howard}, R.},
        title = "On long-term forecasts of solar activity",
    booktitle = {Solar Flares and Space Research},
         year = 1969,
       editor = {{de Jager}, C. and {Svestka}, Z.},
       volume = {11},
        pages = {387},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969sfsr.conf..387B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1969csph.conf...93B,
       author = {{Bumba}, V. and {R{\r{u}}{\v{z}}i{\v{c}}kov{\'a}-Topolov{\'a}}, B.},
        title = "Variability of solar calcium emission during one solar rotation",
    booktitle = {IV Consultation on Solar Physics and Hydromagnetics},
         year = 1969,
       editor = {{Megentaler}, Jan},
        pages = {93},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969csph.conf...93B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@BOOK{1969asmf.book.....H,
       author = {{Howard}, R. and {Bumba}, V. and {Smith}, S.~F.},
        title = "Atlas of solar magnetic fields.",
         year = 1969,
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969asmf.book.....H},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1969SoPh....6..104B,
       author = {{Bumba}, V. and {Obridko}, V.~N.},
        title = "`Bartels' active longitudes', sector boundaries and flare activity",
      journal = {\solphys},
         year = 1969,
       volume = {6},
       number = {1},
        pages = {104-110},
          doi = {10.1007/BF00146800},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969SoPh....6..104B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1969BAICz..20...67B,
       author = {{Bumba}, V. and {Kleczek}, J. and {Olmr}, J. and {R{\r{u}} {\v{Z}}i{\v{C}}kov{\'a}-Topolov{\'a}}, B.},
        title = "Relation of 1420 MHz radio emission to the distribution of photospheric magnetic fields, coronal emission and filaments",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1969,
       volume = {20},
        pages = {67},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969BAICz..20...67B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1969BAICz..20...63B,
       author = {{Bumba}, V. and {R{\r{u}}{\v{z}}i{\v{c}}kov{\'a}-Topolov{\'a}}, B.},
        title = "Magnetic fields, green corona and filaments in high solar latitudes",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1969,
       volume = {20},
        pages = {63},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969BAICz..20...63B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1969BAICz..20...61B,
       author = {{Bumba}, V. and {Howard}, R.},
        title = "On the solar sources of recurrent geophysical effects",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1969,
       volume = {20},
        pages = {61},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969BAICz..20...61B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1969BAICz..20...18B,
       author = {{Bumba}, V. and {Howard}, R. and {Kopeck{\'y}}, M. and {Kuklin}, G.~V.},
        title = "Some regularities in the distribution of large-scale magnetic fields on the Sun",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1969,
       volume = {20},
        pages = {18},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1969BAICz..20...18B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1968IAUS...35..338B,
       author = {{Bumba}, V. and {Godoli}, G.},
        title = "Correlation Between CA Plages and Longitudinal Magnetic Fields of the Cssar Active Regions",
    booktitle = {Structure and Development of Solar Active Regions},
         year = 1968,
       editor = {{Kiepenheuer}, Karl Otto},
       volume = {35},
        pages = {338},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1968IAUS...35..338B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1968IAUS...35..311B,
       author = {{Bumba}, V. and {Krivsk{\'y}}, L. and {Martres}, M.~J. and {Soru-Iscovici}, I.},
        title = "Flare Activity and Spotgroup Development",
    booktitle = {Structure and Development of Solar Active Regions},
         year = 1968,
       editor = {{Kiepenheuer}, Karl Otto},
       volume = {35},
        pages = {311},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1968IAUS...35..311B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1968IAUS...35...64B,
       author = {{Bumba}, V. and {Kleczek}, J. and {Olmr}, J. and {Ruzickov{\'a}-Topolova}, B. and {S{\'y}kora}, J.},
        title = "Last Phases of Development of Active Regions",
    booktitle = {Structure and Development of Solar Active Regions},
         year = 1968,
       editor = {{Kiepenheuer}, Karl Otto},
       volume = {35},
        pages = {64},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1968IAUS...35...64B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1968IAUS...35...13B,
       author = {{Bumba}, V. and {Howard}, R. and {Martres}, M.~J. and {Soru-Iscovici}, I.},
        title = "Patterns of Active Region Magnetic Field Development",
    booktitle = {Structure and Development of Solar Active Regions},
         year = 1968,
       editor = {{Kiepenheuer}, Karl Otto},
       volume = {35},
        pages = {13},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1968IAUS...35...13B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1968BAICz..19..180K,
       author = {{Kr{\"u}ger}, A. and {Bumba}, V. and {Howard}, R. and {Kleczek}, J.},
        title = "The interplanetary sector structure and solar radio emission",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1968,
       volume = {19},
        pages = {180},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1968BAICz..19..180K},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1967SoPh....1..371B,
       author = {{Bumba}, V.},
        title = "Magnetic Fields in Small and Young Sunspots",
      journal = {\solphys},
         year = 1967,
       volume = {1},
       number = {3-4},
        pages = {371-376},
          doi = {10.1007/BF00151362},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1967SoPh....1..371B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1967SoPh....1..216B,
       author = {{Bumba}, V. and {R{\r{A}}{textasciimacron}{\v{z}}i{\v{c}}kov{\'a}-Topolov{\'a}}, B.},
        title = "Variability of the Integrated Solar K Line Emission",
      journal = {\solphys},
         year = 1967,
       volume = {1},
       number = {2},
        pages = {216-219},
          doi = {10.1007/BF00150856},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1967SoPh....1..216B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1967mrs..conf..131B,
       author = {{Bumba}, V. and {Howard}, Robert and {Smith}, Sara F.},
        title = "The Sun as a Magnetic Star",
    booktitle = {Magnetic and Related Stars},
         year = 1967,
       editor = {{Cameron}, Robert C.},
        pages = {131},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1967mrs..conf..131B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@BOOK{1967asmf.book.....H,
       author = {{Howard}, Robert and {Bumba}, V. and {Smith}, Sara F.},
        title = "Atlas of solar magnetic fields",
         year = 1967,
       adsurl = {https://ui.adsabs.harvard.edu/abs/1967asmf.book.....H},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1967BAICz..18..238B,
       author = {{Bumba}, V.},
        title = "Radial motions in small and young sunspots",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1967,
       volume = {18},
        pages = {238},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1967BAICz..18..238B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1966ApJ...143..592B,
       author = {{Bumba}, V. and {Howard}, Robert},
        title = "A Note on the Identification of ``m'' Regions",
      journal = {\apj},
         year = 1966,
       volume = {143},
        pages = {592},
          doi = {10.1086/148538},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1966ApJ...143..592B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1966BAICz..17...57B,
       author = {{Bumba}, V. and {Kopeck{\'y}}, M. and {Kuklin}, G.~V.},
        title = "Some theoretical aspects of sunspots",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1966,
       volume = {17},
        pages = {57},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1966BAICz..17...57B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1965Sci...149.1331B,
       author = {{Bumba}, V. and {Howard}, Robert},
        title = "Solar Magnetic Fields",
      journal = {Science},
         year = 1965,
       volume = {149},
       number = {3690},
        pages = {1331-1337},
          doi = {10.1126/science.149.3690.1331},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1965Sci...149.1331B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1965ApJ...142..796B,
       author = {{Bumba}, V. and {Howard}, Robert},
        title = "On the Development of Solar Flares Within the Calcium Network.",
      journal = {\apj},
         year = 1965,
       volume = {142},
        pages = {796},
          doi = {10.1086/148344},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1965ApJ...142..796B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1965ApJ...141.1502B,
       author = {{Bumba}, V. and {Howard}, Robert},
        title = "Large-Scale Distribution of Solar Magnetic Fields.",
      journal = {\apj},
         year = 1965,
       volume = {141},
        pages = {1502},
          doi = {10.1086/148238},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1965ApJ...141.1502B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1965ApJ...141.1492B,
       author = {{Bumba}, V. and {Howard}, Robert},
        title = "A Study of the Development of Active Regions on the Sun.",
      journal = {\apj},
         year = 1965,
       volume = {141},
        pages = {1492},
          doi = {10.1086/148237},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1965ApJ...141.1492B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1965PASP...77...55B,
       author = {{Bumba}, V. and {Howard}, R. and {Kleczek}, J.},
        title = "Association of Green-Line Coronal Features with Photospheric Magnetic Fields",
      journal = {\pasp},
         year = 1965,
       volume = {77},
       number = {454},
        pages = {55},
          doi = {10.1086/128152},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1965PASP...77...55B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1965IAUS...22..305B,
       author = {{Bumba}, V.},
        title = "Some notes on sunspot fine structure",
    booktitle = {Stellar and Solar Magnetic Fields},
         year = 1965,
       editor = {{Lust}, R.},
       volume = {22},
        pages = {305},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1965IAUS...22..305B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1965IAUS...22..192B,
       author = {{Bumba}, V.},
        title = "Short note on the connections between the facular network and sunspots",
    booktitle = {Stellar and Solar Magnetic Fields},
         year = 1965,
       editor = {{Lust}, R.},
       volume = {22},
        pages = {192},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1965IAUS...22..192B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@INPROCEEDINGS{1964susp.conf..220B,
       author = {{Bumba}, V. and {Howard}, R.},
        title = "The development of sunspot groups and the supergranular pattern",
    booktitle = {Atti del Convegno Sulle Macchie Solari},
         year = 1964,
        pages = {220},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1964susp.conf..220B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1964Ast....69..535B,
       author = {{Bumba}, V. and {Howard}, R.~F. and {Smith}, S.~F.},
        title = "Large-Scale Patterns of Solar Magnetic Fields",
      journal = {Astronomy},
         year = 1964,
       volume = {69},
        pages = {535},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1964Ast....69..535B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1964AJ.....69Q.535B,
       author = {{Bumba}, V. and {Howard}, Robert and {Smith}, Sara F.},
        title = "Large-Scale Patterns of the Solar Magnetic Field.",
      journal = {\aj},
         year = 1964,
       volume = {69},
        pages = {535},
          doi = {10.1086/109387},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1964AJ.....69Q.535B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1963BAICz..14..137B,
       author = {{Bumba}, V.},
        title = "Contribution to the discussion of radial motions in sunspots",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1963,
       volume = {14},
        pages = {137},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1963BAICz..14..137B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1963BAICz..14..134B,
       author = {{Bumba}, V.},
        title = "Slow change in the maximum intensity of the magnetic field of regular spots",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1963,
       volume = {14},
        pages = {134},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1963BAICz..14..134B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1963BAICz..14..102B,
       author = {{Bumba}, V.},
        title = "Auxiliary horizontal solar spectrograph at Ond{\v{r}}ejov",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1963,
       volume = {14},
        pages = {102},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1963BAICz..14..102B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1963BAICz..14...91B,
       author = {{Bumba}, V.},
        title = "Development of SPOT group areas in dependence on the local magnetic field",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1963,
       volume = {14},
        pages = {91},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1963BAICz..14...91B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1963BAICz..14...22B,
       author = {{Bumba}, V.},
        title = "Unusual observation of a meteor train",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1963,
       volume = {14},
        pages = {22},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1963BAICz..14...22B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1963BAICz..14....1B,
       author = {{Bumba}, V.},
        title = "Relation between motions and local magnetic fields in the photosphere",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1963,
       volume = {14},
        pages = {1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1963BAICz..14....1B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1962IAUTB..11R.430B,
       author = {{Bumba}, V.},
        title = "Configuration of Magnetic Fields in Sunspot Umbrae",
      journal = {Transactions of the International Astronomical Union, Series B},
         year = 1962,
       volume = {11B},
        pages = {430},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1962IAUTB..11R.430B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1962IAUTB..11Q.430B,
       author = {{Bumba}, V. and {Kleczek}, Y.},
        title = "Sunspot Magnetic Fields and Loop Prominences",
      journal = {Transactions of the International Astronomical Union, Series B},
         year = 1962,
       volume = {11B},
        pages = {430},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1962IAUTB..11Q.430B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1962BAICz..13..118B,
       author = {{Bumba}, V. and {Kleczek}, F.},
        title = "A simple device for studying sunspot motions",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1962,
       volume = {13},
        pages = {118},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1962BAICz..13..118B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1962BAICz..13...95B,
       author = {{Bumba}, V. and {Topolov{\'a}-R{\r{u}} {\v{Z}}i{\v{C}}kov{\'a}}, B.},
        title = "Polarization of light in solar spectrograph. I. Polarization on coelostat mirrors",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1962,
       volume = {13},
        pages = {95},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1962BAICz..13...95B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1962BAICz..13...48B,
       author = {{Bumba}, V.},
        title = "Magnetic fields in sunspot umbrae",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1962,
       volume = {13},
        pages = {48},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1962BAICz..13...48B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1962BAICz..13...42B,
       author = {{Bumba}, V.},
        title = "Contribution to the study of the magnetic field in sunspot umbrae",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1962,
       volume = {13},
        pages = {42},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1962BAICz..13...42B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1961Obs....81..141B,
       author = {{Bumba}, V. and {Kleczek}, J.},
        title = "On a sunspot group with an outstanding loop activity",
      journal = {The Observatory},
         year = 1961,
       volume = {81},
        pages = {141-143},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1961Obs....81..141B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1961BAICz..12..114B,
       author = {{Bumba}, V. and {Letfus}, V.},
        title = "Note on Evershed's measurements of the magnetic field in a chromospheric flare",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1961,
       volume = {12},
        pages = {114},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1961BAICz..12..114B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1961BAICz..12...82B,
       author = {{Bumba}, V.},
        title = "Magnetic fields in sunspot groups",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1961,
       volume = {12},
        pages = {82},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1961BAICz..12...82B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1961BAICz..12....7B,
       author = {{Blaha}, M. and {Bumba}, V. and {K{\v{r}}ivsk{\'y}}, L. and {Valn{\'\i}{\v{c}}ek}, B.},
        title = "Active chromospheric phenomenon on the NW-limb of the Sun, 1960 August 20",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1961,
       volume = {12},
        pages = {7},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1961BAICz..12....7B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1960BAICz..11..254B,
       author = {{Bumba}, V. and {Olmr}, F.},
        title = "Emission in two directions by sources of increased radiation on metre waves",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1960,
       volume = {11},
        pages = {254},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1960BAICz..11..254B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1959BAICz..10..221B,
       author = {{Bumba}, V. and {K{\v{r}}ivsk{\'y}}, L.},
        title = "Chromospheric pre-flares",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1959,
       volume = {10},
        pages = {221},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1959BAICz..10..221B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1959BAICz..10..183B,
       author = {{Bumba}, V.},
        title = "The relation of motion in ``unipolar'' sun-spots to the magnetic field in these spots",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1959,
       volume = {10},
        pages = {183},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1959BAICz..10..183B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1958Obs....78...33S,
       author = {{Severny}, A.~B. and {Bumba}, V.},
        title = "On the penetration of solar magnetic fields into the chromosphere",
      journal = {The Observatory},
         year = 1958,
       volume = {78},
        pages = {33-35},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1958Obs....78...33S},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1956BAICz...7...18B,
       author = {{Bumba}, V. and {Valn{\'\i}{\v{c}}ek}, B.},
        title = "Das Spektrum des Meteors 1954 Dezember 14, (Meteorspektra II)",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1956,
       volume = {7},
        pages = {18},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1956BAICz...7...18B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1955BAICz...6..141B,
       author = {{Bumba}, V.},
        title = "Eine Erg{\"a}nzung zur Bemerkung {\"u}ber die Sonnent{\"a}tigkeit und die Meteore",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1955,
       volume = {6},
        pages = {141},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1955BAICz...6..141B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1955BAICz...6..139B,
       author = {{Bumba}, V.},
        title = "Eine Bemerkung {\"u}ber die Sonnent{\"a}tigkeit und die Meteore",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1955,
       volume = {6},
        pages = {139},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1955BAICz...6..139B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1955BAICz...6..108B,
       author = {{Bumba}, V. and {Valni{\v{c}}ek}, B.},
        title = "The Meteor Spectra of the Perseid Shower 1953. First Part",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1955,
       volume = {6},
        pages = {108},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1955BAICz...6..108B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1955BAICz...6....1B,
       author = {{Bumba}, V.},
        title = "Einflu{\ensuremath{\beta}} der gro{\ensuremath{\beta}}en Meteorstr{\"o}me auf die Charaktervariationen der geomagnetischen T{\"a}tigkeit",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1955,
       volume = {6},
        pages = {1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1955BAICz...6....1B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1953BAICz...4..147B,
       author = {{Bumba}, V.},
        title = "Long Enduring Meteor Trains. I. Statistical Results",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1953,
       volume = {4},
        pages = {147},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1953BAICz...4..147B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1950BAICz...2...68B,
       author = {{Bumba}, V.},
        title = "Influence de l'angle horaire du Soleil et de la Lune sur les altitudes m{\'e}t{\'e}oriques",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1950,
       volume = {2},
        pages = {68},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1950BAICz...2...68B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1949BAICz...1..125B,
       author = {{Bumba}, V.},
        title = "Variation saisonni{\`e}re des altitudes m{\'e}t{\'e}oriques",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1949,
       volume = {1},
        pages = {125},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1949BAICz...1..125B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1949BAICz...1...93B,
       author = {{Bumba}, V.},
        title = "Influence de l'activit{\'e} solaire sur le nombre des observations de m{\'e}t{\'e}ores, de train{\'e}es m{\'e}t{\'e}oriques et de chutes m{\'e}t{\'e}oritiques",
      journal = {Bulletin of the Astronomical Institutes of Czechoslovakia},
         year = 1949,
       volume = {1},
        pages = {93},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1949BAICz...1...93B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}

@ARTICLE{1948PAICz..20....1B,
       author = {{Bumba}, V. and {Link}, F.},
        title = "Etudes meteoriques.",
      journal = {Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences},
         year = 1948,
       volume = {20},
        pages = {1},
       adsurl = {https://ui.adsabs.harvard.edu/abs/1948PAICz..20....1B},
      adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}


