Persistent Identifiers: the ‘URN Granular’ Project of the German National Library and the University and State Library Halle. LIBER Quarterly: The Journal of the Association of European Research Libraries, [S. l.], v. 19, n. 3-4, p. 259–274, 2010. DOI: 10.18352/lq.7965. Disponível em: https://testplatform.openjournals.nl/liberquarterly/article/view/10561.. Acesso em: 23 nov. 2024.