TY - JOUR AU - A. A. Andreev AU - J. O. Yakovleva TI - The Goursat-type problem for a hyperbolic equation and~system of third order hyperbolic equations JO - Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences PY - 2019 SP - 186 EP - 194 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VSGTU_2019_23_1_a9/ LA - ru ID - VSGTU_2019_23_1_a9 ER -