@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/}
}