@article{DE_1988_24_1_a4,
     author = {A. A. Dezin},
     title = {Spline-forms, difference equations, approximation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {32--43},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_1_a4/}
}