%0 Journal Article %A Ryotaro Sato %T Vector-valued ergodic theorems for multiparameter Additive processes II %J Colloquium Mathematicum %D 2003 %P 117-129 %V 97 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm97-1-11/ %R 10.4064/cm97-1-11 %G en %F 10_4064_cm97_1_11