%0 Journal Article %A T. F. Filippova %T Optimization of an integral functional on a pencil of solutions of a controllable differential inclusion %J Differencialʹnye uravneniâ %D 1987 %P 457-464 %V 23 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_3_a11/ %G ru %F DE_1987_23_3_a11