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@article{DE_1989_25_5_a10, author = {A. B. Bazarbekov}, title = {Smoothness of the solution of the {Tricomi} problem for equations of mixed type}, journal = {Differencialʹnye uravneni\^a}, pages = {816--822}, publisher = {mathdoc}, volume = {25}, number = {5}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1989_25_5_a10/} }
A. B. Bazarbekov. Smoothness of the solution of the Tricomi problem for equations of mixed type. Differencialʹnye uravneniâ, Tome 25 (1989) no. 5, pp. 816-822. http://geodesic.mathdoc.fr/item/DE_1989_25_5_a10/