@article{10_4064_ap83_1_2,
     author = {Eduard Emel'yanov and Manfred Wolff},
     title = {Mean lower bounds for {Markov} operators},
     journal = {Annales Polonici Mathematici},
     pages = {11--19},
     publisher = {mathdoc},
     volume = {83},
     number = {1},
     year = {2004},
     doi = {10.4064/ap83-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap83-1-2/}
}