00811nam0-22002891i-450-99000126149040332120100103172820.0000126149FED01000126149(Aleph)000126149FED0100012614920001205d1987----km-y0itay50------baengUSy-------001yyOrthogonality and spacetime geometryRobert GoldblattNew York [etc.]Springer-Verlag1987VIII, 189 p.ill.24 cmUniversitextGoldbort,Robert<1949- >318452ITUNINARICAUNIMARCBK990001261490403321C-6-(165006MA1MA1Orthogonality and spacetime geometry381259UNINA