@article{GDZPPN002062747, title = {Domain constants associated with Schwarzian derivative.}, journal = {Commentarii mathematici Helvetici}, volume = {52}, year = {1977}, pages = {603-610}, zbl = {0373.30014}, url = {http://dml.mathdoc.fr/item/GDZPPN002062747} }
Lehto, Olli. Domain constants associated with Schwarzian derivative.. Commentarii mathematici Helvetici, Tome 52 (1977) pp. 603-610. http://gdmltest.u-ga.fr/item/GDZPPN002062747/