ЛЕВЧЕНКО, Є. Г.; РАБЧУН, А. О. Markov chain in determination of information security level. Ukrainian Scientific Journal of Information Security, [S. l.], v. 18, n. 2, p. 22–27, 2012. DOI: 10.18372/2225-5036.18.3422. Disponível em: http://jrnl.kai.edu.ua/index.php/Infosecurity/article/view/3422. Acesso em: 14 jun. 2026.