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@article{DAN_1985_284_3_a9, author = {V. M. Teshukov}, title = {On the hyperbolicity of long wave equations}, journal = {Doklady Akademii Nauk}, pages = {555--559}, publisher = {mathdoc}, volume = {284}, number = {3}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_284_3_a9/} }
V. M. Teshukov. On the hyperbolicity of long wave equations. Doklady Akademii Nauk, Tome 284 (1985) no. 3, pp. 555-559. http://geodesic.mathdoc.fr/item/DAN_1985_284_3_a9/