@article{DAN_1993_329_3_a4,
     author = {Chan Khyu Bong},
     title = {Some conditions for the invertibility of $C$-continuous functional-differential operators},
     journal = {Doklady Akademii Nauk},
     pages = {278--280},
     publisher = {mathdoc},
     volume = {329},
     number = {3},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_329_3_a4/}
}