@article{10_4064_ap101_3_2,
     author = {Kai Liu and Xiao-Guang Qi},
     title = {Meromorphic solutions of $q$-shift difference equations},
     journal = {Annales Polonici Mathematici},
     pages = {215--225},
     publisher = {mathdoc},
     volume = {101},
     number = {3},
     year = {2011},
     doi = {10.4064/ap101-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap101-3-2/}
}