@article{DAN_1988_302_5_a3,
     author = {A. K. Gushchin},
     title = {The {Dirichlet} problem for a second-order elliptic equation},
     journal = {Doklady Akademii Nauk},
     pages = {1044--1048},
     publisher = {mathdoc},
     volume = {302},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_302_5_a3/}
}