TY  - JOUR
AU  - G. M. Buldyk
TI  - Integral curves of the differential equation $(1+x)yy'=-x P_3(x)-x P_1(x)y+\delta y^2$ with a center
JO  - Differencialʹnye uravneniâ
PY  - 1974
SP  - 1231
EP  - 1241
VL  - 10
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1974_10_7_a9/
LA  - ru
ID  - DE_1974_10_7_a9
ER  -