TY - JOUR AU - S. M. Ponomarev TI - Uniqueness of the solution of the Tricomi problem for an equation of mixed type in the plane JO - Differencialʹnye uravneniâ PY - 1979 SP - 183 EP - 184 VL - 15 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1979_15_1_a25/ LA - ru ID - DE_1979_15_1_a25 ER -