%0 Journal Article %A E. Christopher Lance %T Ergodic Theorem for Convex Sets and Operator Algebras. %J Inventiones mathematicae %D 1976 %P 201-214 %V 37 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1976__37_142434/ %F IM_1976__37_142434