TY  - JOUR
AU  - I. A. Pavlyuk
TI  - Asymptotic integration of certain classes of nonautonomous systems of differential equations by means of differential invariants
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 975
EP  - 988
VL  - 6
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_6_a3/
LA  - ru
ID  - DE_1970_6_6_a3
ER  -