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@article{DAN_1991_316_5_a4, author = {V. V. Katrakhov}, title = {Singular boundary value problems for some elliptic equations in}, journal = {Doklady Akademii Nauk}, pages = {1047--1050}, publisher = {mathdoc}, volume = {316}, number = {5}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_316_5_a4/} }
V. V. Katrakhov. Singular boundary value problems for some elliptic equations in. Doklady Akademii Nauk, Tome 316 (1991) no. 5, pp. 1047-1050. http://geodesic.mathdoc.fr/item/DAN_1991_316_5_a4/