%0 Journal Article %A A. A. Andreev %A J. O. Yakovleva %T The Goursat-type problem for a hyperbolic equation and~system of third order hyperbolic equations %J Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences %D 2019 %P 186-194 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VSGTU_2019_23_1_a9/ %G ru %F VSGTU_2019_23_1_a9