%0 Journal Article %A A. Ya. Dubovitskii %A A. A. Milyutin %T The maximum principle, in a class of variations that are small in absolute value, for optimal control problems with mixed constraints of equality and inequality type %J Doklady Akademii Nauk %D 1969 %P 1177-1180 %V 189 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_189_6_a3/ %G ru %F DAN_1969_189_6_a3