CROM, Wolfgang. A Map Collection on the Internet. LIBER Quarterly: The Journal of the Association of European Research Libraries, [S. l.], v. 9, n. 2, p. 222–227, 1999. DOI: 10.18352/lq.7536. Disponível em: https://liberquarterly.eu/article/view/10126.. Acesso em: 23 nov. 2024.