@article{MZM_2001_69_1_a11,
     author = {M. G. Shur},
     title = {Quasi-Feller {Extensions} of {Markov} {Chains} and {Existence} of {Dual} {Chains}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {133--143},
     publisher = {mathdoc},
     volume = {69},
     number = {1},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2001_69_1_a11/}
}