TY - JOUR AU - SE. Warschawski TI - On boundary derivatives in conformal mapping JO - Annales Fennici Mathematici PY - 1968 VL - 411-420 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1968.420/ DO - 10.5186/aasfm.1968.420 LA - en ID - AFM_1968_411-420_a0 ER -