%0 Journal Article %A Cullen, C. G. %A Hall, C. A. %T Classes of Functions on Algebras %J Canadian journal of mathematics %D 1966 %P 139-146 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-018-2/ %R 10.4153/CJM-1966-018-2 %F 10_4153_CJM_1966_018_2