Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1973_208_3_a13, author = {\`E. M. Saak}, title = {Stability of the {Dirichlet} problem for general elliptic equations}, journal = {Doklady Akademii Nauk}, pages = {550--552}, publisher = {mathdoc}, volume = {208}, number = {3}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1973_208_3_a13/} }
È. M. Saak. Stability of the Dirichlet problem for general elliptic equations. Doklady Akademii Nauk, Tome 208 (1973) no. 3, pp. 550-552. http://geodesic.mathdoc.fr/item/DAN_1973_208_3_a13/