TY  - BOOK
AU  - Velo, G [ed.]
AU  - Wightman, A. S [ed.]
ED  - International school of mathematical physics and NATO advanced study institute
TI  - Regular and chaotic motions in dynamic systems
SN  - 0306418967
U1  - 531.11 
PY  - 1985///
CY  - New York
PB  - Plenum Press
ER  -