%0 Journal Article
%A Yu. V. Malyshev
%T Systems with an invariant set
%J Differencialʹnye uravneniâ
%D 1973
%P 2141-2145
%V 9
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1973_9_12_a2/
%G ru
%F DE_1973_9_12_a2