TY  - BOOK
AU  - Beyl, F. Rudolf.
TI  - Lecture Notes in Mathematics: Group Extensions, Representations, and the Schur Multiplicator / 
SN  - 3-540-11954-X
U1  - B13 
PY  - 1980///
CY  - Berlin 33 : 
PB  - Springer-Verlag , 
KW  - Mathematics
ER  -