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@article{DAN_1974_214_3_a2, author = {P. V. Berkhin}, title = {On a boundary value problem for equations of composite type}, journal = {Doklady Akademii Nauk}, pages = {496--498}, publisher = {mathdoc}, volume = {214}, number = {3}, year = {1974}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1974_214_3_a2/} }
P. V. Berkhin. On a boundary value problem for equations of composite type. Doklady Akademii Nauk, Tome 214 (1974) no. 3, pp. 496-498. http://geodesic.mathdoc.fr/item/DAN_1974_214_3_a2/