%0 Journal Article %A Bertram Yood %T Commutativity theorems for normed *-algebras %J Colloquium Mathematicum %D 1996 %P 75-80 %V 69 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-69-1-75-80/ %R 10.4064/cm-69-1-75-80 %G en %F 10_4064_cm_69_1_75_80