TY - GEN PB - His Majesty's Stationery Office CY - London L2 - http://www.bibliotekacyfrowa.pl/Content/104968 PY - 1921 KW - star catalogue KW - binary stars catalogue T1 - Catalogue of double stars from observations made at Royal Observatory, Greenwich UR - http://www.bibliotekacyfrowa.pl/dlibra/publication/edition/104968 ER -