%0 Journal Article %A G. N. Mil'shtein %T Strictly positive Lyapunov functionals for linear systems with aftereffect %J Differencialʹnye uravneniâ %D 1987 %P 2051-2060 %V 23 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_12_a4/ %G ru %F DE_1987_23_12_a4