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@article{IVM_1996_3_a7, author = {R. S. Khairullin}, title = {The {Tricomi} problem for an equation with singular coefficients}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {68--76}, publisher = {mathdoc}, number = {3}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1996_3_a7/} }
R. S. Khairullin. The Tricomi problem for an equation with singular coefficients. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1996), pp. 68-76. http://geodesic.mathdoc.fr/item/IVM_1996_3_a7/