%0 Journal Article %A Fong, Che-Kao %T Normal operators on Banach spaces %J Glasgow mathematical journal %D 1979 %P 163-168 %V 20 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003888/ %R 10.1017/S0017089500003888 %F 10_1017_S0017089500003888