BUTTENFIELD, B. P.; BAUMAN, V.; KERN, R. Spying With Maps: Surveillance Technologies and the Future of Privacy. Cartographic Perspectives, [S. l.], n. 44, p. 70–72, 2003. DOI: 10.14714/CP44.519. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/cp44-buttenfield-et-al. Acesso em: 30 apr. 2024.