@article{TM_2012_277_a2,
     author = {A. I. Bufetov and A. V. Klimenko},
     title = {Maximal inequality and ergodic theorems for {Markov} groups},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {33--48},
     publisher = {mathdoc},
     volume = {277},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2012_277_a2/}
}