%0 Journal Article %A Lothar Göttsche %T Betti numbers for the Hilbert function strata of the punctual Hilbert scheme in two variables. %J Manuscripta mathematica %D 1990 %P 253-260 %V 66 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1990__66_1_155471/ %F MM2_1990__66_1_155471