%0 Journal Article %A Bonsall, F. F. %T A polynomial iteration for the spectral family of an operator %J Glasgow mathematical journal %D 1963 %P 65-69 %V 6 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S2040618500034754/ %R 10.1017/S2040618500034754 %F 10_1017_S2040618500034754