%0 Journal Article %A V. E. Slyusarchuk %T Necessary and sufficient conditions for invertibility of nonautonomous functional-differential operators %J Matematičeskie zametki %D 1987 %P 262-267 %V 42 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1987_42_2_a10/ %G ru %F MZM_1987_42_2_a10