@article{DE_1982_18_1_a5,
     author = {G. D. Karatoprakliev},
     title = {On the uniqueness of the solution of some boundary value problems for equations of mixed type and for hyperbolic equations in $m$-dimensional space},
     journal = {Differencialʹnye uravneni\^a},
     pages = {59--63},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_1_a5/}
}