@article{MM2_1983__42_154919,
     author = {Atsushi Tachikawa},
     title = {On {Interior} regularity and {Liouville's} theorem for harmonic mappings.},
     journal = {Manuscripta mathematica},
     pages = {11--40},
     publisher = {mathdoc},
     volume = {42},
     year = {1983},
     zbl = {0521.58023},
     url = {http://geodesic.mathdoc.fr/item/MM2_1983__42_154919/}
}