%0 Journal Article %A A. L. Skubachevskii %T A certain property of the solutions of a second order linear differential equation of unstable type with retarded argument %J Differencialʹnye uravneniâ %D 1975 %P 760-761 %V 11 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1975_11_4_a22/ %G ru %F DE_1975_11_4_a22