POPOVA, P. Workshop: E-Books and e-Lending in Libraries – Challenges and Opportunities. Digital Presentation and Preservation of Cultural and Scientific Heritage, [S. l.], v. 3, p. 251–251, 2013. DOI: 10.55630/dipp.2013.3.31. Disponível em: https://dipp.math.bas.bg/dipp/article/view/dipp.2013.3.31. Acesso em: 8 may. 2024.