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@article{DAN_1963_153_1_a12, author = {N. E. Tovmasyan}, title = {The {Dirichlet} problem for an elliptic system of two second-order differential equations}, journal = {Doklady Akademii Nauk}, pages = {53--56}, publisher = {mathdoc}, volume = {153}, number = {1}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_153_1_a12/} }
N. E. Tovmasyan. The Dirichlet problem for an elliptic system of two second-order differential equations. Doklady Akademii Nauk, Tome 153 (1963) no. 1, pp. 53-56. http://geodesic.mathdoc.fr/item/DAN_1963_153_1_a12/