TY - JOUR AU - H. Wolf AU - V. P. Havin TI - Poisson kernel is the only approximative identity asymptotically multiplicative on $H^\infty$ JO - Zapiski Nauchnykh Seminarov POMI PY - 1989 SP - 82 EP - 89 VL - 170 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1989_170_a4/ LA - ru ID - ZNSL_1989_170_a4 ER -