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@article{CMH_1977__52_139715, author = {F.W. Gehring}, title = {Univalent functions and the {Schwarzian} derivative.}, journal = {Commentarii mathematici Helvetici}, pages = {561--572}, publisher = {mathdoc}, volume = {52}, year = {1977}, zbl = {0373.30013}, url = {http://geodesic.mathdoc.fr/item/CMH_1977__52_139715/} }
F.W. Gehring. Univalent functions and the Schwarzian derivative.. Commentarii mathematici Helvetici, Tome 52 (1977), pp. 561-572. http://geodesic.mathdoc.fr/item/CMH_1977__52_139715/