%0 Journal Article %A V. G. Zadorozhniy %T On the question of conditions for the applicability of the averaging method %J Differencialʹnye uravneniâ %D 1981 %P 1589-1595 %V 17 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_9_a5/ %G ru %F DE_1981_17_9_a5