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@article{IVM_2004_4_a6, author = {E. A. Utkina}, title = {On {Goursat} problems with additional normal derivatives in the boundary conditions}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {61--65}, publisher = {mathdoc}, number = {4}, year = {2004}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_2004_4_a6/} }
E. A. Utkina. On Goursat problems with additional normal derivatives in the boundary conditions. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (2004), pp. 61-65. http://geodesic.mathdoc.fr/item/IVM_2004_4_a6/