TY  - BOOK
AU  - Janner,A.,et al
ED  - Boon, M
ED  - Janssen, T 
TI  - Group theoretical methods in physics: fourth international colloquium nijmegen 1975
T2  - Lecture notes in physics 50
SN  - 3540077898
U1  - 13.01+22 
PY  - 1976///
CY  - Berlin
PB  - Springer
ER  -