@article{10_4064_ap99_1_5,
     author = {Hong-Yan Xu and Ting-Bin Cao},
     title = {Uniqueness of two analytic functions sharing four values in an angular domain},
     journal = {Annales Polonici Mathematici},
     pages = {55--65},
     publisher = {mathdoc},
     volume = {99},
     number = {1},
     year = {2010},
     doi = {10.4064/ap99-1-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap99-1-5/}
}