%0 Journal Article %A E. G. Eroshkina %T Singularly perturbed systems that contain singular manifolds, and isolated stable roots %J Differencialʹnye uravneniâ %D 1990 %P 573-578 %V 26 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_4_a2/ %G ru %F DE_1990_26_4_a2