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@article{DE_1976_12_10_a14, author = {V. P. Mikhailov}, title = {The {Dirichlet} problem for a second order elliptic equation}, journal = {Differencialʹnye uravneni\^a}, pages = {1877--1891}, publisher = {mathdoc}, volume = {12}, number = {10}, year = {1976}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1976_12_10_a14/} }
V. P. Mikhailov. The Dirichlet problem for a second order elliptic equation. Differencialʹnye uravneniâ, Tome 12 (1976) no. 10, pp. 1877-1891. http://geodesic.mathdoc.fr/item/DE_1976_12_10_a14/