@article{DAN_1993_333_1_a4,
     author = {A. P. Soldatov},
     title = {Dirichlet-type problems for the {Lavrent'ev--Bitsadze} equation. {II.~Existence} theorems},
     journal = {Doklady Akademii Nauk},
     pages = {16--18},
     publisher = {mathdoc},
     volume = {333},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_333_1_a4/}
}