@article{FAA_2000_34_4_a0,
     author = {A. I. Bufetov},
     title = {Operator {Ergodic} {Theorems} for {Actions} of {Free} {Semigroups} and {Groups}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {1--17},
     publisher = {mathdoc},
     volume = {34},
     number = {4},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2000_34_4_a0/}
}