%0 Journal Article %A A. S. Zargaryan %T Variational principles for topological pressure in the case of a Markov chain with a countable number of states %J Matematičeskie zametki %D 1986 %P 749-761 %V 40 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1986_40_6_a6/ %G ru %F MZM_1986_40_6_a6