%0 Journal Article %A Henry B. Laufer %T Ambient Deformations for Exceptional Sets in Two-Manifolds. %J Inventiones mathematicae %D 1979 %P 1-36 %V 55 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1979__55_186138/ %F IM_1979__55_186138