TY - JOUR AU - Prakash G. Umarani TI - The radius of close-to-convexity of $V_k(ϱ)$ JO - Annales Polonici Mathematici PY - 1981 SP - 291 EP - 294 VL - 40 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-40-3-291-294/ DO - 10.4064/ap-40-3-291-294 LA - en ID - 10_4064_ap_40_3_291_294 ER -