TY  - BOOK
AU  - Doebner, H. D. (ed.)
AU  - Henning, J. D. (ed.)
TI  - Lecture notes in mathematics
SN  - 3540156666
U1  - 510 
PY  - 1985///
CY  - New York
PB  - Springer-Verlag
KW  - Differential geometry
KW  - Mathematical physics
N1  - PBK
ER  -