%0 Journal Article
%A I. V. Kuznetsova
%T Averaging in multifrequency systems with lag
%J Differencialʹnye uravneniâ
%D 1981
%P 1128-1131
%V 17
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_6_a17/
%G ru
%F DE_1981_17_6_a17