lena Pavlovska Е. Digital Object Identifier (DOI) – an Important Element in Scientific Communication. Digital Presentation and Preservation of Cultural and Scientific Heritage, [S. l.], v. 7, p. 79–86, 2017. DOI: 10.55630/dipp.2017.7.7. Disponível em: https://dipp.math.bas.bg/dipp/article/view/dipp.2017.7.7. Acesso em: 26 apr. 2024.