00804nam0-22002531i-450-990001178110403321000117811FED01000117811(Aleph)000117811FED0100011781120000920d1983----km-y0itay50------baengCentral extensions, galois groupes and ideal class groups of number fieldsby FROHLI CH A.Providence (RI)American Mathematical Society1983Contemporary mathematics24Frohlich,A.348846ITUNINARICAUNIMARCBK990001178110403321C-1-(242139MA1MA1Central extensions, galois groupes and ideal class groups of number fields342048UNINAING01