@article{EJDE_2013__2013__a78,
     author = {Liu, Yong and Qi, Xiaoguang and Yi, Hongxun},
     title = {Value distribution of difference polynomials of meromorphic functions},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2013},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2013__2013__a78/}
}