@article{AFM_2013_38_1_a16,
     author = {Zhuomin Liu},
     title = {Another proof of the {Liouville} theorem},
     journal = {Annales Fennici Mathematici},
     pages = {327--340},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {2013},
     doi = {10.5186/aasfm.2013.3807},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5186/aasfm.2013.3807/}
}