%0 Journal Article %A V. G. Kurbatov %T A conjecture in the theory of functional-differential equations %J Differencialʹnye uravneniâ %D 1978 %P 2074-2075 %V 14 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_11_a18/ %G ru %F DE_1978_14_11_a18