TY  - JOUR
AU  - B. M. Arkhipov
AU  - A. Ya. Khokhryakov
TI  - Strictly positive periodic solutions of a nonlinear ordinary differential equation
JO  - Differencialʹnye uravneniâ
PY  - 1978
SP  - 798
EP  - 806
VL  - 14
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_5_a1/
LA  - ru
ID  - DE_1978_14_5_a1
ER  -