00787nam0-22003011i-450-990001050670403321000105067FED01000105067(Aleph)000105067FED0100010506720000920d1950----km-y0itay50------baengMathematics of RelativityG.Y. RainichNew YorkJohn WileyChapman & Hall1950LondonApplied mathematics seriesRelativitàGravità530.11Rainich,G.Y.50060ITUNINARICAUNIMARCBK99000105067040332123-00650FI1FI1Mathematics of Relativity341028UNINAING01