%0 Journal Article %A Roland Schnaubelt %T Exponential and polynomial dichotomies of operator semigroups on Banach spaces %J Studia Mathematica %D 2006 %P 121-138 %V 175 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm175-2-2/ %R 10.4064/sm175-2-2 %G en %F 10_4064_sm175_2_2