VRAGOV, G.; KARADECHEVA, M.; GEORGIEV, P.; OVCHAROVA, R. Digital Library of Collections from Cultural Institutions in Plovdiv. Digital Presentation and Preservation of Cultural and Scientific Heritage, [S. l.], v. 3, p. 189–197, 2013. DOI: 10.55630/dipp.2013.3.22. Disponível em: https://dipp.math.bas.bg/dipp/article/view/dipp.2013.3.22. Acesso em: 29 apr. 2024.