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200 1 $aFlat and Curved Space-Time$fGeorge F.R. Ellis and Ruth M. Williams$gdiagrams by Mauro Carfora
210   $aOxford$cClarendon Press$d1988
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700  1$aEllis,$bGeorge F.R.$045649
702  1$aCarfora,$bMauro
702  1$aWilliams,$bRuth M.
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