@article{10_4064_ap115_1_2,
     author = {Yasheng Ye and Xuecheng Pang and Liu Yang},
     title = {An extension of {Schwick's} theorem for normal families},
     journal = {Annales Polonici Mathematici},
     pages = {23--31},
     publisher = {mathdoc},
     volume = {115},
     number = {1},
     year = {2015},
     doi = {10.4064/ap115-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap115-1-2/}
}