%0 Journal Article %A Amouch, M. %A Zguitti, H. %T A note on the $a$-Browder’s and $a$-Weyl’s theorems %J Mathematica Bohemica %D 2008 %P 157-166 %V 133 %N 2 %I mathdoc %U https://geodesic-test.mathdoc.fr/articles/10.21136/MB.2008.134059/ %R 10.21136/MB.2008.134059 %G en %F 10_21136_MB_2008_134059