%0 Journal Article %T Seminar on Problems of Nonlinear Dynamics and Control at Moscow State University %J Differencialʹnye uravneniâ %D 2001 %P 1140-1147 %V 37 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2001_37_8_a16/ %G ru %F DE_2001_37_8_a16