TY  - JOUR
AU  - Alan Weinstein
TI  - The Invariance of Poincaré's Generating Function for Canonical Transformations.
JO  - Inventiones mathematicae
PY  - 1972
SP  - 202
EP  - 213
VL  - 16
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM_1972__16_142143/
ID  - IM_1972__16_142143
ER  -