%0 Journal Article %A L. T. Ashchepkov %A N. I. Baranchikova %T Criteria for the optimality of positional controls %J Doklady Akademii Nauk %D 1995 %P 175-176 %V 342 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1995_342_2_a8/ %G ru %F DAN_1995_342_2_a8