@article{AFM_2007_32_2_a17,
     author = {Dariusz Partyka and Ken-ichi Sakan},
     title = {On {bi-Lipschitz} type inequalities for quasiconformal harmonic mappings},
     journal = {Annales Fennici Mathematici},
     pages = {579--594},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AFM_2007_32_2_a17/}
}