%0 Journal Article %A Cai-Feng Yi %A Yu Wang %A Hong-Yan Xu %T An improvement of Hayman's inequality on an angular domain %J Annales Polonici Mathematici %D 2010 %P 181-192 %V 99 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap99-2-5/ %R 10.4064/ap99-2-5 %G en %F 10_4064_ap99_2_5