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http://www.oajadwiga.pl
Website of The Astronomical Observatory of Queen Jadwiga in Rzepiennik Biskupi
http://www.pta.edu.pl/index_eng.html
The Polish Astronomical Society, is the major organization of professional astronomers in Poland.
http://www.ptma.pl/
Website of The Polish Amateur Astronomers Society
http://www.oa.uj.edu.pl/
Website of the Astronomical Observatory of the Jagiellonian University in Kraków
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