@article{1077311794, author = {Harrington, A. and Ortel, M.}, title = {The dilatation of an extremal quasi-conformal mapping}, journal = {Duke Math. J.}, volume = {43}, number = {1}, year = {1976}, pages = { 533-544}, language = {en}, url = {http://dml.mathdoc.fr/item/1077311794} }
Harrington, A.; Ortel, M. The dilatation of an extremal quasi-conformal mapping. Duke Math. J., Tome 43 (1976) no. 1, pp. 533-544. http://gdmltest.u-ga.fr/item/1077311794/