%0 Journal Article %A Chan Khyu Bong %T Some conditions for the invertibility of $C$-continuous functional-differential operators %J Doklady Akademii Nauk %D 1993 %P 278-280 %V 329 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1993_329_3_a4/ %G ru %F DAN_1993_329_3_a4