%0 Journal Article %A Earl Berkson %A T. A. Gillespie %T An $M_q({\Bbb T})$-functional calculus for power-bounded operators on certain UMD spaces %J Studia Mathematica %D 2005 %P 245-257 %V 167 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm167-3-6/ %R 10.4064/sm167-3-6 %G en %F 10_4064_sm167_3_6