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@article{IVM_2006_9_a0, author = {S. A. Aldashev}, title = {Darboux--Protter problems for degenerate multidimensional hyperbolic equations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--9}, publisher = {mathdoc}, number = {9}, year = {2006}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2006_9_a0/} }
S. A. Aldashev. Darboux--Protter problems for degenerate multidimensional hyperbolic equations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (2006), pp. 3-9. http://geodesic.mathdoc.fr/item/IVM_2006_9_a0/