%0 Journal Article %A Z. B. Seidov %T A certain initial problem for differential equations with retarded argument %J Differencialʹnye uravneniâ %D 1971 %P 1534-1537 %V 7 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_8_a22/ %G ru %F DE_1971_7_8_a22