%0 Journal Article %A A. V. Dvorak %T The conditional stability of an invariant torus of a dynamical system %J Differencialʹnye uravneniâ %D 1976 %P 1410-1416 %V 12 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_8_a4/ %G ru %F DE_1976_12_8_a4