%0 Journal Article
%A A. Ya. Dubovitskii
%A A. A. Milyutin
%T Second variations in extremal problems with constraints
%J Doklady Akademii Nauk
%D 1965
%P 18-21
%V 160
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1965_160_1_a3/
%G ru
%F DAN_1965_160_1_a3