%0 Journal Article %A Edward Brian Davies %T The Harmonic Functions of Mean Ergodic Markov Semigroups. %J Mathematische Zeitschrift %D 1982 %P 543-552 %V 181 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1982__181_173253/ %F MZ_1982__181_173253