@article{DAN_1996_347_2_a3,
     author = {V. S. Ryaben'kii},
     title = {Piecewise regular solutions of difference equations, and},
     journal = {Doklady Akademii Nauk},
     pages = {160--163},
     year = {1996},
     volume = {347},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1996_347_2_a3/}
}