TY - JOUR AU - V. G. Krotov TI - Differential properties on the boundary of functions that are holomorphic in the unit ball in~$C^N$ JO - Matematičeskie zametki PY - 1989 SP - 51 EP - 59 VL - 45 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1989_45_2_a5/ LA - ru ID - MZM_1989_45_2_a5 ER -