%0 Journal Article %A Alberto Calabri %A Ciro Ciliberto %A Flaminio Flamini %A Rick Miranda %T On the $K^2$ of degenerations of surfaces and the multiple point formula %J Annals of mathematics %D 2007 %P 335-395 %V 165 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4007/annals.2007.165.335/ %R 10.4007/annals.2007.165.335 %G en %F 10_4007_annals_2007_165_335