LEADER 00904nam0-22003131i-450- 001 990001110140403321 010 $a0-521-39783-9 035 $a000111014 035 $aFED01000111014 035 $a(Aleph)000111014FED01 035 $a000111014 100 $a20000920d1990----km-y0itay50------ba 101 0 $aeng 200 1 $aTwistors in Mathematics and Physics$fEdited by T.N. Bailey and R.J. Baston 210 $aCambridge$cCambridge University Press$d1990 225 1 $aLondon Mathematical Society lecture note series$v156 610 0 $aRelatività 610 0 $aGravità 676 $a530.11 700 1$aBailey,$bT. N.$053065 702 1$aBaston,$bRobert J. 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990001110140403321 952 $a23-214$b18530$fFI1 959 $aFI1 996 $aTwistors in Mathematics and Physics$9337878 997 $aUNINA DB $aING01