HARROWER, M.; KELLER, C. P.; HOCKING, D. Cartography on the Internet: Thoughts and a Preliminary User Survey. Cartographic Perspectives, [S. l.], n. 26, p. 27–37, 1997. DOI: 10.14714/CP26.718. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp26-harrower-keller-hocking. Acesso em: 25 aug. 2024.