BÄÄRNHIELM, Göran. Digital Cartography in the Royal Library -the National Library of Sweden. LIBER Quarterly: The Journal of the Association of European Research Libraries, [S. l.], v. 9, n. 2, p. 162–166, 1999. DOI: 10.18352/lq.7529. Disponível em: https://liberquarterly.eu/article/view/10133.. Acesso em: 1 sep. 2024.