%0 Journal Article %A Berkani, M. %A Sarih, M. %T On semi B-Fredholm operators %J Glasgow mathematical journal %D 2001 %P 457-465 %V 43 %N 3 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089501030075/ %R 10.1017/S0017089501030075 %F 10_1017_S0017089501030075