LEADER 00640nam0-22002411i-450- 001 990001155400403321 035 $a000115540 035 $aFED01000115540 035 $a(Aleph)000115540FED01 035 $a000115540 100 $a20000920d1962----km-y0itay50------ba 101 0 $aeng 200 1 $aGravitation$ean introduction to current research$fby Witten Louis 210 $as.l.$cJohn Wiley$d1962 700 1$aWitten,$bLouis$045575 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990001155400403321 952 $a29-I-25$b4741$fMA1 959 $aMA1 996 $aGravitation$9336066 997 $aUNINA DB $aING01