@article{DM_2012_24_1_a7,
     author = {Z. I. Bezhaeva and V. I. Oseledets},
     title = {Calculation of the entropy for a~hidden {Markov} chain},
     journal = {Diskretnaya Matematika},
     pages = {108--122},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2012_24_1_a7/}
}