00531nam a2200181Ia 4500082002000000100002300020245005700043260003500100300001400135490003800149500000500187690000600192700000500198952010200203964001700305921001000322999001700332  a530.1bSe454.MC  aSegal, Irving Ezra  aMathematical cosmology and extragalactic astronomyb  aNew YorkbAcademic Pressc1976  aix, 204p.  aPure and Applied Mathematicsv 68  a  a   a  00104070aISIbISId1998-10-12l0o530.1 Se454.MCpDP12280r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a16913  c16913d16913