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@article{DE_1999_35_3_a15, author = {V. N. Sushch}, title = {On some difference analogues of first-order invariant hyperbolic systems}, journal = {Differencialʹnye uravneni\^a}, pages = {411--417}, publisher = {mathdoc}, volume = {35}, number = {3}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1999_35_3_a15/} }
V. N. Sushch. On some difference analogues of first-order invariant hyperbolic systems. Differencialʹnye uravneniâ, Tome 35 (1999) no. 3, pp. 411-417. http://geodesic.mathdoc.fr/item/DE_1999_35_3_a15/