%0 Journal Article %A K. Altmann %T Equisingular deformations of isolated 2-dimensional hyper-surface singularities. %J Inventiones mathematicae %D 1987 %P 619-634 %V 88 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1987__88_143469/ %F IM_1987__88_143469