%0 Journal Article %A V. A. Dykhta %T Variational Optimality Conditions with Feedback Descent Controls that Strengthen the Maximum Principle %J The Bulletin of Irkutsk State University. Series Mathematics %D 2014 %P 86-103 %V 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2014_8_a6/ %G ru %F IIGUM_2014_8_a6