%0 Journal Article %A Yu. N. Kiselev %T Optimal design in a smooth linear time-optimality problem %J Differencialʹnye uravneniâ %D 1990 %P 232-237 %V 26 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_2_a5/ %G ru %F DE_1990_26_2_a5