TY - JOUR AU - V. A. Bryukhanov TI - A mixed problem for a hyperbolic equation degenerate on a part of the bounday of a region JO - Differencialʹnye uravneniâ PY - 1972 SP - 3 EP - 6 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1972_8_1_a0/ LA - ru ID - DE_1972_8_1_a0 ER -