@article{ZNSL_2000_266_a2,
     author = {A. I. Bufetov},
     title = {Skew products and ergodic theorems for group actions},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {13--28},
     publisher = {mathdoc},
     volume = {266},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2000_266_a2/}
}