%0 Journal Article
%A V. I. Guţu
%T Periodic solutions of one-dimensional and two-dimensional systems of differential equations with impulses
%J Differencialʹnye uravneniâ
%D 1990
%P 904-906
%V 26
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1990_26_5_a22/
%G ru
%F DE_1990_26_5_a22