@article{MAN_1992__292_2_164914,
     author = {Martin Chuaqui and Brad Osgood},
     title = {The {Schwarzian} derivative and conformally natural quasiconformal extensions from one to two to three dimensions.},
     journal = {Mathematische Annalen},
     pages = {267--280},
     publisher = {mathdoc},
     volume = {292},
     number = {2},
     year = {1992},
     zbl = {0794.30016},
     url = {http://geodesic.mathdoc.fr/item/MAN_1992__292_2_164914/}
}