@article{AFM_2013_38_2_a16,
     author = {Qiaoyu Chen and Shahar Nevo and Xuecheng Pang},
     title = {A general differential inequality of the kth derivative that leads to normality},
     journal = {Annales Fennici Mathematici},
     pages = {691--695},
     publisher = {mathdoc},
     volume = {38},
     number = {2},
     year = {2013},
     doi = {10.5186/aasfm.2013.3833},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2013.3833/}
}