%0 Journal Article %A Burkhard Kümmerer %T A Non-Commutative Individual Ergodic Theorem. %J Inventiones mathematicae %D 1978 %P 139-146 %V 46 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1978__46_142555/ %F IM_1978__46_142555