%0 Journal Article %A Paweł Wiatrowski %T On the radius of convexity of some family of functions regular in the ring 0 < |z| < 1 %J Annales Polonici Mathematici %D 1971 %P 85-98 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-25-1-85-98/ %R 10.4064/ap-25-1-85-98 %G en %F 10_4064_ap_25_1_85_98