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@article{DE_1996_32_3_a10, author = {A. N. Zarubin}, title = {An analogue of the {Tricomi} problem for an equation of mixed type with retarded argument}, journal = {Differencialʹnye uravneni\^a}, pages = {350--356}, publisher = {mathdoc}, volume = {32}, number = {3}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1996_32_3_a10/} }
A. N. Zarubin. An analogue of the Tricomi problem for an equation of mixed type with retarded argument. Differencialʹnye uravneniâ, Tome 32 (1996) no. 3, pp. 350-356. http://geodesic.mathdoc.fr/item/DE_1996_32_3_a10/