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@article{DE_1983_19_8_a22, author = {A. G. Kamenskii}, title = {A counterexample in the theory of difference operators}, journal = {Differencialʹnye uravneni\^a}, pages = {1457--1458}, publisher = {mathdoc}, volume = {19}, number = {8}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1983_19_8_a22/} }
A. G. Kamenskii. A counterexample in the theory of difference operators. Differencialʹnye uravneniâ, Tome 19 (1983) no. 8, pp. 1457-1458. http://geodesic.mathdoc.fr/item/DE_1983_19_8_a22/