%0 Journal Article
%A AIENA, PIETRO
%A GONZÁLEZ, MANUEL
%A MARTINÓN, ANTONIO
%T ON THE PERTURBATION CLASSES OF CONTINUOUS SEMI-FREDHOLM OPERATORS
%J Glasgow mathematical journal
%D 2003
%P 91-95
%V 45
%N 1
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089502001027/
%R 10.1017/S0017089502001027
%F 10_1017_S0017089502001027