@article{GDZPPN002427141,
title = {The Harmonic Functions of Mean Ergodic Markov Semigroups.},
journal = {Mathematische Zeitschrift},
volume = {180},
year = {1982},
pages = {543-552},
zbl = {0493.60078},
url = {http://dml.mathdoc.fr/item/GDZPPN002427141}
}
Davies, Edward Brian. The Harmonic Functions of Mean Ergodic Markov Semigroups.. Mathematische Zeitschrift, Tome 180 (1982) pp. 543-552. http://gdmltest.u-ga.fr/item/GDZPPN002427141/