TY - JOUR AU - V. S. Rykhlov TI - The uniqueness of the solution of an initial boundary value problem for a hyperbolic equation with a mixed derivative and~a~formula for~the~solution JO - Izvestiya of Saratov University. Mathematics. Mechanics. Informatics PY - 2023 SP - 183 EP - 194 VL - 23 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ISU_2023_23_2_a3/ LA - ru ID - ISU_2023_23_2_a3 ER -