00626nam0-22002411i-450-990001271000403321000127100FED01000127100(Aleph)000127100FED0100012710020000920d1969----km-y0itay50------baengEinstein Spacesby Petrovs.l.Pergamon Press1969Petrov,Aleksei Zinov'evich40425ITUNINARICAUNIMARCBK99000127100040332129-H-7-BIS9202MA1MA1Einstein Spaces338360UNINAING01