@article{DAN_1993_333_3_a1,
     author = {A. G. Baskakov},
     title = {Some conditions for the invertibility of linear differential and difference operators},
     journal = {Doklady Akademii Nauk},
     pages = {282--284},
     publisher = {mathdoc},
     volume = {333},
     number = {3},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_333_3_a1/}
}