%0 Journal Article %A Matti Lehtinen %T The dilatation of Beurling-Ahlfors extensions of quasisymmetric functions %J Annales Fennici Mathematici %D 1983 %P 187-191 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1983.0817/ %R 10.5186/aasfm.1983.0817 %G en %F AFM_1983_8_1_a11