@article{1077376394, author = {Schiffer, M.}, title = {A variational method for univalent quasiconformal mappings}, journal = {Duke Math. J.}, volume = {33}, number = {1}, year = {1966}, pages = { 395-411}, language = {en}, url = {http://dml.mathdoc.fr/item/1077376394} }
Schiffer, M. A variational method for univalent quasiconformal mappings. Duke Math. J., Tome 33 (1966) no. 1, pp. 395-411. http://gdmltest.u-ga.fr/item/1077376394/