@article{05005344, title = {Remarks on the conditions for unique extremality of quasiconformal mappings.}, journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie}, volume = {75(89)}, year = {2004}, pages = {67-76}, doi = {10.2298/PIM0475067R}, zbl = {1086.30028}, language = {en}, url = {http://dml.mathdoc.fr/item/05005344} }
Reich, Edgar. Remarks on the conditions for unique extremality of quasiconformal mappings.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 75(89) (2004) pp. 67-76. doi : 10.2298/PIM0475067R. http://gdmltest.u-ga.fr/item/05005344/