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@article{CMH_1984__59_139974, author = {Ch. Pommerenke and F.W. Gehring}, title = {On the {Nehari} univalence criterion and quasicircles.}, journal = {Commentarii mathematici Helvetici}, pages = {226--242}, publisher = {mathdoc}, volume = {59}, year = {1984}, zbl = {0543.30014}, url = {http://geodesic.mathdoc.fr/item/CMH_1984__59_139974/} }
Ch. Pommerenke; F.W. Gehring. On the Nehari univalence criterion and quasicircles.. Commentarii mathematici Helvetici, Tome 59 (1984), pp. 226-242. http://geodesic.mathdoc.fr/item/CMH_1984__59_139974/