TY  - JOUR
AU  - N. P. Morozov
TI  - The approximate determination of the period of the periodic solution of a certain strongly nonlinear system
JO  - Differencialʹnye uravneniâ
PY  - 1974
SP  - 1412
EP  - 1422
VL  - 10
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_8_a8/
LA  - ru
ID  - DE_1974_10_8_a8
ER  -