@article{article19dcc737,
title   = {On the existence of maximizing measures for irreducible countable Markov shifts: a dynamical proof},
author = {Bissacot, Rodrigo and Freire Júnior, Ricardo dos Santos},
year = {2014},
doi = {10.1017/etds.2012.194},
journal   = {Ergodic Theory and Dynamical Systems}
}