%0 Journal Article %A Ryotaro Sato %T On a local ergodic theorem %J Studia Mathematica %D 1976 %P 1-5 %V 58 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-58-1-1-5/ %R 10.4064/sm-58-1-1-5 %G en %F 10_4064_sm_58_1_1_5