@article{GDZPPN002428032, title = {Rectangles and Quasiconformal Mappings.}, journal = {Mathematische Zeitschrift}, volume = {183}, year = {1983}, pages = {539-546}, zbl = {0518.30023}, url = {http://dml.mathdoc.fr/item/GDZPPN002428032} }
Hinkkanen, Aimo. Rectangles and Quasiconformal Mappings.. Mathematische Zeitschrift, Tome 183 (1983) pp. 539-546. http://gdmltest.u-ga.fr/item/GDZPPN002428032/