PENTZ, E. CrossRef and DOIs: New Developments. LIBER Quarterly: The Journal of the Association of European Research Libraries, [S. l.], v. 14, n. 1, 2003. DOI: 10.18352/lq.7753. Disponível em: https://liberquarterly.eu/article/view/10352. Acesso em: 19 may. 2024.