00614nam0-22002411i-450-990001138420403321000113842FED01000113842(Aleph)000113842FED0100011384220000920d1968----km-y0itay50------baengCosmologydi BondiCambridgeCambridge University Press1968Bondi,Hermann40366ITUNINARICAUNIMARCBK99000113842040332129-L-910806MA1MA1Cosmology186976UNINAING01