Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1968_179_4_a2, author = {V. S. Vinogradov}, title = {The {Dirichlet} problem for multidimensional second order elliptic systems}, journal = {Doklady Akademii Nauk}, pages = {766--767}, publisher = {mathdoc}, volume = {179}, number = {4}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_179_4_a2/} }
V. S. Vinogradov. The Dirichlet problem for multidimensional second order elliptic systems. Doklady Akademii Nauk, Tome 179 (1968) no. 4, pp. 766-767. http://geodesic.mathdoc.fr/item/DAN_1968_179_4_a2/