%0 Journal Article %A A. B. Kurzhanskii %A T. F. Filippova %T Description of the pencil of viable trajectories of a control system %J Differencialʹnye uravneniâ %D 1987 %P 1303-1315 %V 23 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_8_a2/ %G ru %F DE_1987_23_8_a2