TY - JOUR AU - S. M. Ponomarev TI - On the theory of the Tricomi problem for the Lavrent’ev-Bicadze equation with spectral parameter JO - Doklady Akademii Nauk PY - 1980 SP - 797 EP - 801 VL - 255 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1980_255_4_a5/ LA - ru ID - DAN_1980_255_4_a5 ER -