TY  - BOOK
AU  - Doebner, H.D. et al Eds.
TI  - Classical and quantum systems - Foundations and Symmetries: Proceedings of the II International Wigner symposium,Goslar, Germany, July 16 - 20, 1991
SN  - 981 02 1099 X
CY  - Singapore
KW  - Quantum systems
ER  -