MARTYSHIN, Maksim. Legal regulation of guarding state secrets. Gosudarstvennaya Sluzhba, [S. l.], v. 11, n. 6, p. 55–57, 2009. Disponível em: https://gosudarstvennaya-sluzhba.owebs.ru/article/view/20959. Acesso em: 8 nov. 2026.