БЕРНАДСЬКИЙ, Б. В. Secret data protection on Ukraine terrytory in Archaic period. Ukrainian Scientific Journal of Information Security, [S. l.], v. 17, n. 1, p. 55–63, 2012. DOI: 10.18372/2225-5036.17.3393. Disponível em: http://jrnl.kai.edu.ua/index.php/Infosecurity/article/view/3393. Acesso em: 14 jun. 2026.