%0 Journal Article %A Andrei E. Ghenciu %A Mario Roy %T Gibbs states for non-irreducible countable Markov shifts %J Fundamenta Mathematicae %D 2013 %P 231-265 %V 221 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm221-3-3/ %R 10.4064/fm221-3-3 %G en %F 10_4064_fm221_3_3