%0 Journal Article
%A V. Sh. Burd
%A P. P. Zabreiko
%A Yu. S. Kolesov
%A M. A. Krasnosel'skii
%T The averaging principle and bifurcation of almost periodic solutions
%J Doklady Akademii Nauk
%D 1969
%P 1219-1221
%V 187
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_187_6_a1/
%G ru
%F DAN_1969_187_6_a1