TY  - GEN
TI  - Differential geometrical methods in mathematical physics  : : Proceedings of the Symposium held at the University of Bonn, July 1-4, 1975. / 
PY  - 1977///
CY  - berlin
PB  - Springer-Verlag
KW  - FISICA MATEMATICA
KW  - CONGRESOS
KW  - GEOMETRIA DIFERENCIAL
ER  -