Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1999_35_7_a12, author = {I. V. Gaishun}, title = {Canonical forms of linear discrete two-parameter systems}, journal = {Differencialʹnye uravneni\^a}, pages = {964--968}, publisher = {mathdoc}, volume = {35}, number = {7}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1999_35_7_a12/} }
I. V. Gaishun. Canonical forms of linear discrete two-parameter systems. Differencialʹnye uravneniâ, Tome 35 (1999) no. 7, pp. 964-968. http://geodesic.mathdoc.fr/item/DE_1999_35_7_a12/