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@article{DAN_1992_325_1_a3, author = {M. M. Ovezova}, title = {On the solvability of {Darboux} problems for a hyperbolic system}, journal = {Doklady Akademii Nauk}, pages = {24--27}, publisher = {mathdoc}, volume = {325}, number = {1}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1992_325_1_a3/} }
M. M. Ovezova. On the solvability of Darboux problems for a hyperbolic system. Doklady Akademii Nauk, Tome 325 (1992) no. 1, pp. 24-27. http://geodesic.mathdoc.fr/item/DAN_1992_325_1_a3/