LEADER 00804nam0-22002531i-450- 001 990001178110403321 035 $a000117811 035 $aFED01000117811 035 $a(Aleph)000117811FED01 035 $a000117811 100 $a20000920d1983----km-y0itay50------ba 101 0 $aeng 200 1 $aCentral extensions, galois groupes and ideal class groups of number fields$fby FROHLI CH A. 210 $aProvidence (RI)$cAmerican Mathematical Society$d1983 225 1 $aContemporary mathematics$v24 700 1$aFrohlich,$bA.$0348846 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990001178110403321 952 $aC-1-(24$b2139$fMA1 959 $aMA1 996 $aCentral extensions, galois groupes and ideal class groups of number fields$9342048 997 $aUNINA DB $aING01