%0 Journal Article %A V. I. Blagodatskikh %T On the theory of sufficient conditions for optimality %J Doklady Akademii Nauk %D 1976 %P 1041-1044 %V 231 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_231_5_a2/ %G ru %F DAN_1976_231_5_a2