%0 Journal Article %A L. Z. Fishman %T Preservation of the character of the boundary of the domain of stability of a continuous system when it is replaced by a discrete system constructed by means of the Runge--Kutta method %J Doklady Akademii Nauk %D 1992 %P 32-36 %V 327 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_327_1_a4/ %G ru %F DAN_1992_327_1_a4