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@article{DAN_1971_201_3_a5, author = {M. Meredov}, title = {On the {Darboux} problem for a degenerating hyperbolic system}, journal = {Doklady Akademii Nauk}, pages = {538--541}, publisher = {mathdoc}, volume = {201}, number = {3}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_201_3_a5/} }
M. Meredov. On the Darboux problem for a degenerating hyperbolic system. Doklady Akademii Nauk, Tome 201 (1971) no. 3, pp. 538-541. http://geodesic.mathdoc.fr/item/DAN_1971_201_3_a5/