TY  - JOUR
AU  - A. D. Morozov
AU  - E. L. Fedorov
TI  - On the investigation of equations with one degree of freedom, close to nonlinear integrable ones
JO  - Differencialʹnye uravneniâ
PY  - 1983
SP  - 1511
EP  - 1516
VL  - 19
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1983_19_9_a5/
LA  - ru
ID  - DE_1983_19_9_a5
ER  -