TY  - GEN
AU  - Munchen, J. Ehlers
AU  - 
TI  - Lecture notes in physics: group theretical methods in physics
SN  - 35401027x
U1  - 530.08 
PY  - 1980///
CY  - New York
PB  - Springer- Verlag
UR  - http://link.springer.com/bookseries/5304
ER  -