%0 Journal Article %A B. V. Aleshin %T Application of the averaging method to a system of differential equations %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1974 %P 237-240 %V 14 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1974_14_1_a24/ %G ru %F ZVMMF_1974_14_1_a24