TY  - JOUR
AU  - A. D. Bruno
TI  - The normal form of a Hamiltonian system
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1988
SP  - 25
EP  - 66
VL  - 43
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1988_43_1_a2/
LA  - en
ID  - RM_1988_43_1_a2
ER  -