%0 Journal Article %A R. G. Aliev %T Normal solvability of a functional-differential equation with operator coefficients in a Hilbert space %J Differencialʹnye uravneniâ %D 1991 %P 1486-1493 %V 27 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_9_a1/ %G ru %F DE_1991_27_9_a1