TY - JOUR AU - G. A. Varlamova AU - A. I. Kozhanov TI - Nonlocal problems with integral conditions for hyperbolic equations with two time variables JO - Matematičeskie zametki SVFU PY - 2023 SP - 12 EP - 26 VL - 30 IS - 3 UR - http://geodesic.mathdoc.fr/item/SVFU_2023_30_3_a1/ LA - ru ID - SVFU_2023_30_3_a1 ER -