MINEV, D.; KRATCHANOV, I. Useful in Times of Crisis: Improved Access to Online Content. Digital Presentation and Preservation of Cultural and Scientific Heritage, [S. l.], v. 10, p. 79–86, 2020. DOI: 10.55630/dipp.2020.10.4. Disponível em: https://dipp.math.bas.bg/dipp/article/view/dipp.2020.10.4. Acesso em: 15 jun. 2024.