Multifunctional model for unified description and access to unique documents and special collections of cultural heritage. Research Announcements "Heritage BG", [S. l.], n. 1, p. 96–102, 2025. DOI: 10.58894/AR-HBg.2021.1.96-102. Disponível em: https://periodicals.uni-sofia.bg/index.php/AR-NBg/article/view/1389. Acesso em: 10 mar. 2026.