%0 Journal Article %A M. R. Rangarajan %T On the radius of starlikeness and convexity of certain classes of analytic functions %J Annales Polonici Mathematici %D 1985 %P 125-135 %V 45 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-45-2-125-135/ %R 10.4064/ap-45-2-125-135 %G en %F 10_4064_ap_45_2_125_135