Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1984_20_3_a23, author = {V. A. Korobitsyn}, title = {Transformations of two-layer difference operators}, journal = {Differencialʹnye uravneni\^a}, pages = {533--536}, publisher = {mathdoc}, volume = {20}, number = {3}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1984_20_3_a23/} }
V. A. Korobitsyn. Transformations of two-layer difference operators. Differencialʹnye uravneniâ, Tome 20 (1984) no. 3, pp. 533-536. http://geodesic.mathdoc.fr/item/DE_1984_20_3_a23/