ДРЕЙС, Ю. О. Functioning of the state secrets security system in Ukraine: organizational and legal structure, principles and objectives. Ukrainian Scientific Journal of Information Security, [S. l.], v. 20, n. 2, p. 176–184, 2014. DOI: 10.18372/2225-5036.20.7305. Disponível em: http://jrnl.kai.edu.ua/index.php/Infosecurity/article/view/7305. Acesso em: 14 jun. 2026.