TY - JOUR AU - M. E. Lerner TI - On the formulation and solvability of a class of boundary value problems for the Lavrent'ev--Bitsadze equation JO - Doklady Akademii Nauk PY - 1991 SP - 561 EP - 565 VL - 317 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1991_317_3_a10/ LA - ru ID - DAN_1991_317_3_a10 ER -