@article{DE_1992_28_4_a18,
     author = {V. P. Shutyaev},
     title = {Properties of a solution of a conjugate equation in a nonlinear hyperbolic problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {706--715},
     year = {1992},
     volume = {28},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_4_a18/}
}