%0 Journal Article %A V. A. Yakubovich %T Impulse control systems with width modulation %J Doklady Akademii Nauk %D 1968 %P 290-293 %V 180 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_180_2_a8/ %G ru %F DAN_1968_180_2_a8