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@article{DE_1995_31_6_a2, author = {I. V. Gaishun}, title = {Approximate controllability of two-parameter discrete systems with commuting operators}, journal = {Differencialʹnye uravneni\^a}, pages = {939--948}, publisher = {mathdoc}, volume = {31}, number = {6}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1995_31_6_a2/} }
I. V. Gaishun. Approximate controllability of two-parameter discrete systems with commuting operators. Differencialʹnye uravneniâ, Tome 31 (1995) no. 6, pp. 939-948. http://geodesic.mathdoc.fr/item/DE_1995_31_6_a2/