%0 Journal Article %A Tonia Ricciardi %T On planar Beltrami equations and Hölder regularity %J Annales Fennici Mathematici %D 2008 %P 143-158 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AFM_2008_33_1_a9/ %G en %F AFM_2008_33_1_a9