%0 Journal Article
%A B. T. Polyak
%T Existence theorems and convergence of minimizing sequences for extremal problems with constraints
%J Doklady Akademii Nauk
%D 1966
%P 287-290
%V 166
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1966_166_2_a7/
%G ru
%F DAN_1966_166_2_a7