%0 Journal Article %A V. A. Tyshkevich %T On the solvability of the problem of the accumulation of perturbations for linear differential equations with retarded argument %J Differencialʹnye uravneniâ %D 1977 %P 1815-1820 %V 13 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_10_a11/ %G ru %F DE_1977_13_10_a11