Copernicus Foundation for Polish Astronomy
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1 | POLISH ASTRONOMICAL SOCIETY POLSKIE TOWARZYSTWO ASTRONOMICZNE (PTA) www.pta.edu.pl Is professional organization for astronomers Founded in Torun on 19 February[removed]on 450th anniversaryAdd to Reading ListSource URL: eas.unige.chLanguage: English - Date: 2012-02-22 05:46:38 |