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@article{MZM_1982_32_2_a10, author = {Yu. V. Direev}, title = {Ergodic lemma for additive functionals of {Markov} process}, journal = {Matemati\v{c}eskie zametki}, pages = {239--248}, publisher = {mathdoc}, volume = {32}, number = {2}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1982_32_2_a10/} }
Yu. V. Direev. Ergodic lemma for additive functionals of Markov process. Matematičeskie zametki, Tome 32 (1982) no. 2, pp. 239-248. http://geodesic.mathdoc.fr/item/MZM_1982_32_2_a10/