%0 Journal Article %A D. Ya. Khusainov %T Investigation of the stability of linear differential-functional equations of retarded type by the method of Lyapunov functions %J Differencialʹnye uravneniâ %D 1990 %P 1645-1646 %V 26 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_9_a25/ %G ru %F DE_1990_26_9_a25