%0 Journal Article %A E. S. Pyatnitskii %T The decomposition principle in the control of mechanical systems %J Doklady Akademii Nauk %D 1988 %P 300-303 %V 300 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_300_2_a9/ %G ru %F DAN_1988_300_2_a9