%0 Journal Article %A S. Walczak %T Extremal problems in the class of close-to-convex functions %J Annales Polonici Mathematici %D 1971 %P 23-38 %V 25 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-25-1-23-38/ %R 10.4064/ap-25-1-23-38 %G en %F 10_4064_ap_25_1_23_38