CHUVIECO, E.; DEL VALLE, H. In Memoriam: Sergio Opazo Saldivia. GeoFocus. International Review of Geographical Information Science and Technology, [S. l.], n. 13_2, p. 1–3, 2013. Disponível em: https://www.geofocus.org/index.php/geofocus/article/view/284. Acesso em: 30 apr. 2025.