%0 Journal Article %A M. P. Kharlamov %T Regions of possible motion in mechanical systems %J Doklady Akademii Nauk %D 1982 %P 571-573 %V 267 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_267_3_a13/ %G ru %F DAN_1982_267_3_a13