%0 Journal Article %A S. F. Nikolaev %A E. L. Tonkov %T Differentiability of the optimal time vector and positional control of a linear subcritical system %J Differencialʹnye uravneniâ %D 2000 %P 76-84 %V 36 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2000_36_1_a10/ %G ru %F DE_2000_36_1_a10