TY - JOUR AU - T. V. Chekmarev TI - Solution of the hyperbolic system of two partial differential equations with two unknown functions JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 1959 SP - 220 EP - 228 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_1959_6_a26/ LA - ru ID - IVM_1959_6_a26 ER -