TY  - JOUR
AU  - A. V. Kostin
TI  - Asymptotic series in the theory of nonlinear systems of ordinary differential equations. II
JO  - Differencialʹnye uravneniâ
PY  - 1967
SP  - 1070
EP  - 1077
VL  - 3
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1967_3_7_a3/
LA  - ru
ID  - DE_1967_3_7_a3
ER  -