%0 Journal Article %A V. E. Slyusarchuk %T Invertibility of nonautonomous functional-differential operators %J Sbornik. Mathematics %D 1987 %P 83-100 %V 58 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1987_58_1_a4/ %G en %F SM_1987_58_1_a4