TY - JOUR AU - K. S. Padmanabhan TI - On a certain class of functions whose derivatives have a positive real part in the unit disc JO - Annales Polonici Mathematici PY - 1970 SP - 73 EP - 81 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-23-1-73-81/ DO - 10.4064/ap-23-1-73-81 LA - en ID - 10_4064_ap_23_1_73_81 ER -