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@article{DAN_1958_118_1_a9, author = {S. P. Pul'kin}, title = {The {Tricomi} problem for the general equation of {Lavrentiev--Bitzadze}}, journal = {Doklady Akademii Nauk}, pages = {38--41}, publisher = {mathdoc}, volume = {118}, number = {1}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1958_118_1_a9/} }
S. P. Pul'kin. The Tricomi problem for the general equation of Lavrentiev--Bitzadze. Doklady Akademii Nauk, Tome 118 (1958) no. 1, pp. 38-41. http://geodesic.mathdoc.fr/item/DAN_1958_118_1_a9/