@article{DAN_1963_148_1_a9,
     author = {S. I. Khudyaev},
     title = {A criterion for the solvability of the {Dirichlet} problem for elliptic equations},
     journal = {Doklady Akademii Nauk},
     pages = {44--46},
     publisher = {mathdoc},
     volume = {148},
     number = {1},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_148_1_a9/}
}