%0 Journal Article %A Hong-Yan Xu %A Ting-Bin Cao %T Uniqueness of two analytic functions sharing four values in an angular domain %J Annales Polonici Mathematici %D 2010 %P 55-65 %V 99 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap99-1-5/ %R 10.4064/ap99-1-5 %G en %F 10_4064_ap99_1_5