%0 Journal Article %A Al-Khezi, S. %T Analytic functions of a prespectral operator %J Glasgow mathematical journal %D 1982 %P 171-175 %V 23 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500004948/ %R 10.1017/S0017089500004948 %F 10_1017_S0017089500004948