TY - JOUR AU - O. V. Ivanov TI - Fatou theorem on nontangential limits and questions of extension on the ideal boundary JO - Zapiski Nauchnykh Seminarov POMI PY - 1991 SP - 101 EP - 109 VL - 190 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1991_190_a4/ LA - ru ID - ZNSL_1991_190_a4 ER -