TY - GEN PB - Libraire Scientique J. Herman CY - Paris L2 - http://ww.bibliotekacyfrowa.pl/Content/97429 PY - 1923 KW - theoretical astronomy KW - celestial mechanics T1 - Cours D'Astronomie. I. Astronomie Theoretique UR - http://ww.bibliotekacyfrowa.pl/dlibra/publication/edition/97429 ER -