@article{IM2_2015_79_2_a4,
     author = {S. V. Nagaev},
     title = {The spectral method and ergodic theorems for general {Markov} chains},
     journal = {Izvestiya. Mathematics },
     pages = {311--345},
     publisher = {mathdoc},
     volume = {79},
     number = {2},
     year = {2015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2015_79_2_a4/}
}