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@article{DE_1972_8_4_a14, author = {\`E. M. Saak}, title = {The stability of the {Dirichlet} problem for elliptic equations of arbitrary order}, journal = {Differencialʹnye uravneni\^a}, pages = {706--714}, publisher = {mathdoc}, volume = {8}, number = {4}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_4_a14/} }
È. M. Saak. The stability of the Dirichlet problem for elliptic equations of arbitrary order. Differencialʹnye uravneniâ, Tome 8 (1972) no. 4, pp. 706-714. http://geodesic.mathdoc.fr/item/DE_1972_8_4_a14/