BURDOV, Sergey Nikolaevich. The System of Confidential Paperwork as Form of Protection of Confidential Information: Normative and Organizational Aspects. Administrative Consulting, [S. l.], n. 3, p. 133–139, 2014. Disponível em: https://administrative-consulting.owebs.ru/article/view/12568. Acesso em: 8 nov. 2026.