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@article{DAN_1993_333_6_a5, author = {S. R. Umarov}, title = {Some boundary value problems for elliptic equations with a}, journal = {Doklady Akademii Nauk}, pages = {708--710}, publisher = {mathdoc}, volume = {333}, number = {6}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1993_333_6_a5/} }
S. R. Umarov. Some boundary value problems for elliptic equations with a. Doklady Akademii Nauk, Tome 333 (1993) no. 6, pp. 708-710. http://geodesic.mathdoc.fr/item/DAN_1993_333_6_a5/