@article{AFM_2008_33_1_a15,
     author = {David Kalaj},
     title = {On harmonic quasiconformal self-mappings of the unit ball},
     journal = {Annales Fennici Mathematici},
     pages = {261--271},
     year = {2008},
     volume = {33},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2008_33_1_a15/}
}