TY - JOUR AU - V. G. Maz'ya TI - On the modulus of continuity of a harmonic function at a boundary point JO - Zapiski Nauchnykh Seminarov POMI PY - 1984 SP - 87 EP - 95 VL - 135 UR - http://geodesic.mathdoc.fr/item/ZNSL_1984_135_a7/ LA - ru ID - ZNSL_1984_135_a7 ER -