%0 Journal Article %A Rowan Killip %A Barry Simon %T Sum rules and spectral measures of Schrödinger operators with $L^2$ potentials %J Annals of mathematics %D 2009 %P 739-782 %V 170 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.170.739/ %R 10.4007/annals.2009.170.739 %G en %F 10_4007_annals_2009_170_739