NACIS NEWS, M. NACIS News. Cartographic Perspectives, [S. l.], n. 15, p. 34–37, 1993. DOI: 10.14714/CP15.978. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp15-nacis-news. Acesso em: 3 may. 2026.