00814nam0-22002651i-450-990001134740403321000113474FED01000113474(Aleph)000113474FED0100011347420000920d1982----km-y0itay50------baengGroup extensions, representations, and the Schur multiplicatorby Beyl,Tappe;Berlin [etc.]Springer-Verlag1982Lecture Notes in Mathematics958Beyl,Friedrich Rudolf54473Tappe,JürgenITUNINARICAUNIMARCBK990001134740403321C-20-(95820968MA1MA1Group extensions, representations, and the Schur multiplicator345335UNINAING01