00795nam0-22003011i-450-990001017970403321000101797FED01000101797(Aleph)000101797FED0100010179720000920d1966----km-y0itay50------baengAdvances in astronomy and astrophysicsedied by Zdenek KopalNew YorkAcademic Press1966AstronomiaAstrofisicaCosmologia520523Kopal,Zdenek1129ITUNINARICAUNIMARCBK99000101797040332119-065.0035224FI1FI1Advances in astronomy and astrophysics186119UNINAING01