%0 Journal Article
%A A. B. Vasil'eva
%A M. A. Petrova
%T Periodic solutions of singularly perturbed equations of elliptic type
%J Differencialʹnye uravneniâ
%D 1985
%P 1013-1020
%V 21
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1985_21_6_a12/
%G ru
%F DE_1985_21_6_a12