TY  - JOUR
AU  - A. E. Rudenok
TI  - Isolated periodic solutions of certain differential equations
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 935
EP  - 937
VL  - 14
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_5_a23/
LA  - ru
ID  - DE_1978_14_5_a23
ER  -