TY  - JOUR
AU  - Marta Tyran-Kamińska
TI  - Ergodic theorems and perturbations of
 contraction semigroups
JO  - Studia Mathematica
PY  - 2009
SP  - 147
EP  - 155
VL  - 195
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm195-2-4/
DO  - 10.4064/sm195-2-4
LA  - en
ID  - 10_4064_sm195_2_4
ER  -