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@article{DE_1965_1_7_a7, author = {A. I. Klimushev}, title = {Ljapunov functions for linear systems of difference equations with variable coeffiecients}, journal = {Differencialʹnye uravneni\^a}, pages = {929--932}, publisher = {mathdoc}, volume = {1}, number = {7}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1965_1_7_a7/} }
A. I. Klimushev. Ljapunov functions for linear systems of difference equations with variable coeffiecients. Differencialʹnye uravneniâ, Tome 1 (1965) no. 7, pp. 929-932. http://geodesic.mathdoc.fr/item/DE_1965_1_7_a7/