TY  - BOOK
AU  - Beyl Rwdolf F
AU  -  Tappe Jurgen
TI  - Group extensions, representations and the schur multiplicator
T2  - Lecture notes in mathematics; 958
U1  - B27, M2 
PY  - 1982///
CY  - Berlin
PB  - Springer Verlag        
ER  -