TY - JOUR AU - A. V. Bitsadze TI - A special case of the problem of the oblique derivative for harmonic functions in three-dimensional domains JO - Doklady Akademii Nauk PY - 1964 SP - 730 EP - 731 VL - 155 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1964_155_4_a1/ LA - ru ID - DAN_1964_155_4_a1 ER -