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6. nespecifikovano Type: model:periodicalitem and TEXT Language: English Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
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8. příloha Type: model:periodicalitem and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
9. Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic Type: model:periodicalitem and TEXT Language: Czech and English Description: 28 and The outline of the theory of distribution and occurence of sunspots of the solar disc Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
10. Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic Type: model:periodicalitem and TEXT Language: Czech and English Description: 32 and Physical conditions in chromospheric flares Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public