TY  - JOUR
AU  - A. A. Martynyuk
TI  - On a theorem of the type of Bogolyubov's first averaging theorem
JO  - Doklady Akademii Nauk
PY  - 1978
SP  - 279
EP  - 281
VL  - 241
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1978_241_2_a4/
LA  - ru
ID  - DAN_1978_241_2_a4
ER  -