%0 Journal Article
%A A. B. Vasil'eva
%T Periodic solutions of equations of elliptic type with small parameters
%J Differencialʹnye uravneniâ
%D 1982
%P 2174-2178
%V 18
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1982_18_12_a8/
%G ru
%F DE_1982_18_12_a8