TY  - JOUR
AU  - V. N. Belykh
TI  - The qualitative investigation of a second order nonautonomous nonlinear equation
JO  - Differencialʹnye uravneniâ
PY  - 1975
SP  - 1738
EP  - 1753
VL  - 11
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1975_11_10_a2/
LA  - ru
ID  - DE_1975_11_10_a2
ER  -