TY  - JOUR
AU  - D. V. Treschev
TI  - Preservation of invariant manifolds of Hamiltonian systems in the presence of a perturbation
JO  - Matematičeskie zametki
PY  - 1991
SP  - 123
EP  - 131
VL  - 50
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1991_50_4_a17/
LA  - ru
ID  - MZM_1991_50_4_a17
ER  -