MOSKAL'TSOVA, N. V.; SHURENKOV, V. M. Central limit theorem for centered frequencies of a countable ergodic markov chain. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 12, p. 1713–1715, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5982. Acesso em: 5 dec. 2025.