@article{DE_1992_28_7_a5,
     author = {R. I. Semerdzhieva},
     title = {Solvability of a boundary value problem for a nonlinear degenerate hyperbolic equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1145--1153},
     publisher = {mathdoc},
     volume = {28},
     number = {7},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_7_a5/}
}