@article{DAN_1962_142_1_a2,
     author = {B. R. Vainberg},
     title = {The existence and uniqueness over the entire plane of certain elliptic equations},
     journal = {Doklady Akademii Nauk},
     pages = {14--16},
     year = {1962},
     volume = {142},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_142_1_a2/}
}