TY - JOUR AU - F. E. Lomovtsev AU - E. V. Ustilko TI - Mixed problem for the two-velocity wave equation with characteristic oblique derivative at the ednpoint of a semibounded string JO - Matematičeskie zametki PY - 2024 SP - 411 EP - 429 VL - 116 IS - 3 UR - http://geodesic.mathdoc.fr/item/MZM_2024_116_3_a6/ LA - ru ID - MZM_2024_116_3_a6 ER -