%0 Journal Article %A John W. Bunce %T The General Stone-Weierstrass Problem and Extremal Completely Positive Maps. %J Manuscripta mathematica %D 1986 %P 343-352 %V 56 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1986__56_155175/ %F MM2_1986__56_155175