%0 Journal Article
%A W. Janowski
%T Some extremal problems for certain families of analytic functions I
%J Annales Polonici Mathematici
%D 1973
%P 297-326
%V 28
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-28-3-297-326/
%R 10.4064/ap-28-3-297-326
%G en
%F 10_4064_ap_28_3_297_326