@article{10_1017_S0017089500003888,
     author = {Fong, Che-Kao},
     title = {Normal operators on {Banach} spaces},
     journal = {Glasgow mathematical journal},
     pages = {163--168},
     year = {1979},
     volume = {20},
     number = {2},
     doi = {10.1017/S0017089500003888},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003888/}
}