00746nam0-22002891i-450-9900010511504033210-19-851462-X000105115FED01000105115(Aleph)000105115FED0100010511520000920d1979----km-y0itay50------baengTheoretical Cosmologyby A.K. RaychaudhuriOxfordClarendon Press1979RelativitàGravità530.11Raychaudhuri,A.K.40335ITUNINARICAUNIMARCBK99000105115040332123-14813531FI1FI1Theoretical Cosmology340943UNINAING01