TY - JOUR AU - A. P. Soldatov TI - Riemann--Hilbert Problems for the Lavrent'ev--Bitsadze System in a Mixed Domain with a Characteristic JO - Differencialʹnye uravneniâ PY - 2002 SP - 1653 EP - 1663 VL - 38 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2002_38_12_a8/ LA - ru ID - DE_2002_38_12_a8 ER -