@article{MZM_1986_40_6_a6,
     author = {A. S. Zargaryan},
     title = {Variational principles for topological pressure in the case of a {Markov} chain with a countable number of states},
     journal = {Matemati\v{c}eskie zametki},
     pages = {749--761},
     year = {1986},
     volume = {40},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1986_40_6_a6/}
}