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@article{DE_1985_21_1_a10, author = {A. G. Kuz'min}, title = {Some boundary value problems for equations of mixed type}, journal = {Differencialʹnye uravneni\^a}, pages = {77--83}, publisher = {mathdoc}, volume = {21}, number = {1}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1985_21_1_a10/} }
A. G. Kuz'min. Some boundary value problems for equations of mixed type. Differencialʹnye uravneniâ, Tome 21 (1985) no. 1, pp. 77-83. http://geodesic.mathdoc.fr/item/DE_1985_21_1_a10/