TY  - BOOK
AU  - Yang, C N.
AU  - Ge, M.L.
AU  - Zhou, X.W
TI  - Proceedings of the XXI International conference on differential geometric methods in theoretical physics, Tianjin, China, 5-9 June 1992
SN  - 981 02 1210 0
CY  - Singapore
KW  - Differential Geometric Methods
ER  -