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@article{KUKZ_1977_14_14_a4, author = {R. M. Ganeev}, title = {The {Tricomi} problem for a system of equations of mixed type}, journal = {Trudy seminara po kraevym zada\v{c}am}, pages = {42--52}, publisher = {mathdoc}, volume = {14}, number = {14}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/KUKZ_1977_14_14_a4/} }
R. M. Ganeev. The Tricomi problem for a system of equations of mixed type. Trudy seminara po kraevym zadačam, Trudy Seminara po Kraevym Zadacham, Tome 14 (1977) no. 14, pp. 42-52. http://geodesic.mathdoc.fr/item/KUKZ_1977_14_14_a4/