%0 Journal Article
%A A. A. Tolstonogov
%T Existence of an~optimal control without convexity assumptions in a~first-order evolution system
%J Sbornik. Mathematics
%D 2001
%P 1381-1398
%V 192
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2001_192_9_a5/
%G en
%F SM_2001_192_9_a5