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101 0 $aeng
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200 1 $aOsserman manifolds in semi-riemannian geometry$fE. Garcia-Rio, D. N. Kupeli, R. Vasquez-Lorenzo
210   $aBerlin$cSpringer$dc2002
215   $aix, 166 p.$d24 cm
225 1 $aLecture Notes in Mathematics$v1777
610 0 $aGeometria riemanniana
610 0 $aVarietà di lorentz
676   $a516.373$v21
700  1$aGarcia-Rio,$bEduardo
700  1$aKupeli,$bDemir N.
700  1$aVasquez-Lorenzo,$bRamon
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