%0 Journal Article %A Pietro Aiena %A Mohammed Berkani %T Generalized Weyl's theorem and quasi-affinity %J Studia Mathematica %D 2010 %P 105-120 %V 198 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm198-2-1/ %R 10.4064/sm198-2-1 %G en %F 10_4064_sm198_2_1