TY - JOUR AU - A. Yu. Berezin TI - A problem with an oblique derivative for an elliptic system JO - Differencialʹnye uravneniâ PY - 1985 SP - 158 EP - 161 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1985_21_1_a21/ LA - ru ID - DE_1985_21_1_a21 ER -