%0 Journal Article %A Javier Fernández de Bobadilla %A János Kollár %T Homotopically trivial deformations %J Journal of Singularities %D 2012 %P 85-93 %V 5 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5427/jsing.2012.5f/ %R 10.5427/jsing.2012.5f %F 10_5427_jsing_2012_5f