@article{DAN_1992_327_3_a2,
     author = {M. S. Salakhitdinov and A. S. Berdyshev},
     title = {Boundary value problems for a parabolic-hyperbolic equation in a},
     journal = {Doklady Akademii Nauk},
     pages = {303--305},
     year = {1992},
     volume = {327},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_327_3_a2/}
}