@article{VSGTU_2019_23_1_a9,
     author = {A. A. Andreev and J. O. Yakovleva},
     title = {The {Goursat-type} problem for a hyperbolic equation and~system of third order hyperbolic equations},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {186--194},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_2019_23_1_a9/}
}