HÄKLI, E. Map Collections as National Treasures. LIBER Quarterly: The Journal of the Association of European Research Libraries, [S. l.], v. 13, n. 1, 2003. DOI: 10.18352/lq.7707. Disponível em: https://liberquarterly.eu/article/view/10309. Acesso em: 5 may. 2024.