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@article{VSGTU_2001_12_a4, author = {E. A. Utkina}, title = {On a three-dimensional {Goursat} problem}, journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences}, pages = {30--35}, publisher = {mathdoc}, number = {12}, year = {2001}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/VSGTU_2001_12_a4/} }
E. A. Utkina. On a three-dimensional Goursat problem. Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, no. 12 (2001), pp. 30-35. http://geodesic.mathdoc.fr/item/VSGTU_2001_12_a4/