%0 Journal Article
%A Marta Tyran-Kamińska
%T Ergodic theorems and perturbations of
 contraction semigroups
%J Studia Mathematica
%D 2009
%P 147-155
%V 195
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/sm195-2-4/
%R 10.4064/sm195-2-4
%G en
%F 10_4064_sm195_2_4