%0 Journal Article %A Hengartner, W. %T Distortion Theorems for Diffeomorphisms %J Canadian mathematical bulletin %D 1994 %P 351-360 %V 37 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-052-9/ %R 10.4153/CMB-1994-052-9 %F 10_4153_CMB_1994_052_9