%0 Journal Article %A Sato, Ryotaro %T A note on a local ergodic theorem %J Commentationes Mathematicae Universitatis Carolinae %D 1975 %P 1-11 %V 16 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1975__16_1_a0/ %G en %F CMUC_1975__16_1_a0