TY  - JOUR
AU  - M. B. Sevryuk
TI  - Invariant tori of Hamiltonian systems that are nondegenerate in R\"ussmann’s sense
JO  - Doklady Akademii Nauk
PY  - 1996
SP  - 590
EP  - 593
VL  - 346
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1996_346_5_a2/
LA  - ru
ID  - DAN_1996_346_5_a2
ER  -