TY - GEN PB - Uniwersytet Mikołaja Kopernika CY - Toruń L2 - http://kpbc.umk.pl/Content/47441 KW - astronomia T1 - Bulletin of the Astronomical Observatory in Toruń, nr 4 UR - http://kpbc.umk.pl/dlibra/publication/edition/47441 ER -