NACIS NEWS, M. NACIS News. Cartographic Perspectives, [S. l.], n. 33, p. 68–69, 1999. DOI: 10.14714/CP33.1025. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp33-nacis-news. Acesso em: 6 may. 2024.