%0 Journal Article %A A. G. Butkovskiy %T Problems of finite control of linear systems with lumped parameters %J Doklady Akademii Nauk %D 1968 %P 1056-1059 %V 180 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_180_5_a11/ %G ru %F DAN_1968_180_5_a11