%0 Journal Article
%A M. A. Petrova
%A I. A. Shishmarev
%T Periodic solutions of partial differential equations with small parameters
%J Differencialʹnye uravneniâ
%D 1988
%P 1276-1278
%V 24
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1988_24_7_a27/
%G ru
%F DE_1988_24_7_a27