%0 Journal Article %A Ryszard Jajte %T Borel methods of summability and ergodic theorems %J Annales Polonici Mathematici %D 2002 %P 175-180 %V 78 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap78-2-7/ %R 10.4064/ap78-2-7 %G en %F 10_4064_ap78_2_7