СІНЬКО, Ю. І. Threats to security of information of limited access. Problems of Informatization and Management, [S. l.], v. 4, n. 60, p. 64–70, 2017. DOI: 10.18372/2073-4751.4.12836. Disponível em: https://jrnl.nau.edu.ua/index.php/PIU/article/view/12836. Acesso em: 16 feb. 2026.