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@article{DE_1976_12_2_a13, author = {A. I. Vahabov}, title = {A mixed problem for a hyperbolic system in space}, journal = {Differencialʹnye uravneni\^a}, pages = {305--308}, publisher = {mathdoc}, volume = {12}, number = {2}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_2_a13/} }
A. I. Vahabov. A mixed problem for a hyperbolic system in space. Differencialʹnye uravneniâ, Tome 12 (1976) no. 2, pp. 305-308. http://geodesic.mathdoc.fr/item/DE_1976_12_2_a13/