%0 Journal Article %A Xiaohong Cao %T Weyl type theorem for operator matrices %J Studia Mathematica %D 2008 %P 29-39 %V 186 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm186-1-4/ %R 10.4064/sm186-1-4 %G en %F 10_4064_sm186_1_4