%0 Journal Article
%A Yu. S. Kolesov
%T The amplitude method for constructing multifrequency oscillations of nonlinear systems with delay
%J Differencialʹnye uravneniâ
%D 1981
%P 1596-1602
%V 17
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_9_a6/
%G ru
%F DE_1981_17_9_a6