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@article{DE_1975_11_1_a24, author = {A. M. Nakhushev}, title = {A certain mixed problem for degenerate elliptic equations}, journal = {Differencialʹnye uravneni\^a}, pages = {192--195}, publisher = {mathdoc}, volume = {11}, number = {1}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1975_11_1_a24/} }
A. M. Nakhushev. A certain mixed problem for degenerate elliptic equations. Differencialʹnye uravneniâ, Tome 11 (1975) no. 1, pp. 192-195. http://geodesic.mathdoc.fr/item/DE_1975_11_1_a24/