TY - JOUR AU - T. Sh. Kal'menov AU - M. A. Sadybekov AU - N. E. Erzhanov TI - A criterion for the strong solvability of the Tricomi problem for the Lavrent'ev--Bitsadze equation. The general case JO - Differencialʹnye uravneniâ PY - 1993 SP - 870 EP - 875 VL - 29 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1993_29_5_a16/ LA - ru ID - DE_1993_29_5_a16 ER -