00724nam0-22002531i-450-99000122800040332120080529101446.0000122800FED01000122800(Aleph)000122800FED0100012280020001205d1977----km-y0itay50------baengMathematical cosmologyan introductionPeter T. Landsberg and David A. EvansOxfordClarendon Press1977Landsberg,Peter T.40386Evans,David A.40387ITUNINARICAUNIMARCBK99000122800040332131-C-719450MA1MA1Mathematical cosmology347228UNINA