00741nam0-22002891i-450-9900011060704033210-19-851996-6000110607FED01000110607(Aleph)000110607FED0100011060720000920d1990----km-y0itay50------baengGeneral RelativityI.R. KenyonOxford [etc.]Oxford University Press1990RelativitàGravità530.11Kenyon,I. R.52782ITUNINARICAUNIMARCBK99000110607040332123-20218103FI1FI1General Relativity337593UNINAING01