TY - JOUR AU - S. G. Krein AU - N. P. Polichka TI - A priori estimates for solutions of a problem with displacement for the Lavrent'ev--Bitsadze equation JO - Differencialʹnye uravneniâ PY - 1984 SP - 2112 EP - 2120 VL - 20 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1984_20_12_a11/ LA - ru ID - DE_1984_20_12_a11 ER -