@article{DAN_1990_311_4_a4,
     author = {V. G. Romanov and S. I. Kabanikhin and G. B. Bakanov},
     title = {Investigation of a differential-difference analogue of a},
     journal = {Doklady Akademii Nauk},
     pages = {794--797},
     publisher = {mathdoc},
     volume = {311},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_311_4_a4/}
}