TY  - JOUR
AU  - V. I. Derguzov
TI  - The existence of periodic motions and motions of a special form for Hamiltonian systems with small parameter
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 757
EP  - 760
VL  - 186
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_186_4_a4/
LA  - ru
ID  - DAN_1969_186_4_a4
ER  -