TY - GEN A1 - Dziewulski, Władysław (1878-1962) PB - Comité National Polonais d'Astronomie CY - Kraków L2 - http://kpbc.umk.pl/Content/277 T1 - The determination of apex and vertex from the stars of Boss's "Preliminary General Catalogue" UR - http://kpbc.umk.pl/dlibra/publication/edition/277 ER -