%0 Journal Article
%A B. Mordukhovich
%T On the problem of the existence of optimal controls
%J Differencialʹnye uravneniâ
%D 1971
%P 2161-2167
%V 7
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_12_a4/
%G ru
%F DE_1971_7_12_a4