TY  - JOUR
AU  - K. V. Zadiraka
TI  - Investigation of singularly perturbed systems in the neighborhood of a family of closed orbits
JO  - Doklady Akademii Nauk
PY  - 1962
SP  - 264
EP  - 267
VL  - 144
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1962_144_2_a3/
LA  - ru
ID  - DAN_1962_144_2_a3
ER  -