TY - JOUR AU - F. E. Lomovtsev TI - Generalized Riemann formulas for the solution of the first mixed problem for the general telegraph equation with variable coefficients in the first quadrant JO - Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory PY - 2024 SP - 50 EP - 69 VL - 232 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTO_2024_232_a4/ LA - ru ID - INTO_2024_232_a4 ER -