%0 Journal Article
%A V. A. Pliss
%T On the theory of invariant sets in periodic systems of differential equations
%J Differencialʹnye uravneniâ
%D 1969
%P 215-227
%V 5
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1969_5_2_a0/
%G ru
%F DE_1969_5_2_a0