@article{DE_1984_20_1_a17,
     author = {M. A. Usanetashvili},
     title = {A boundary value problem for the {Holmgren} equation in an unbounded domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {142--147},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_1_a17/}
}