GOWARD, S. N. Land remote sensing in the 21st Century. Geotechnologies in service to human societies. GeoFocus. International Review of Geographical Information Science and Technology, [S. l.], n. 7, p. 1–4, 2007. Disponível em: https://www.geofocus.org/index.php/geofocus/article/view/105. Acesso em: 30 apr. 2025.