@article{GDZPPN002487624,
title = {Bounded Turning and Quasiconformal Maps.},
journal = {Monatshefte f\"ur Mathematik},
volume = {112},
year = {1991},
pages = {233-244},
zbl = {0736.30016},
url = {http://dml.mathdoc.fr/item/GDZPPN002487624}
}
Väisälä, Jussi. Bounded Turning and Quasiconformal Maps.. Monatshefte für Mathematik, Tome 112 (1991) pp. 233-244. http://gdmltest.u-ga.fr/item/GDZPPN002487624/