%0 Journal Article %A Steven Dale Cutkosky %T A new characterization of rational surface singularities. %J Inventiones mathematicae %D 1990 %P 157-178 %V 102 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1990__102_2_143832/ %F IM_1990__102_2_143832