@article{DAN_1971_200_3_a3,
     author = {Yu. A. Dubinskii},
     title = {On a nonlinear problem of {Zaremba} type for a hyperbolic equation},
     journal = {Doklady Akademii Nauk},
     pages = {519--522},
     publisher = {mathdoc},
     volume = {200},
     number = {3},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_3_a3/}
}