VGI and crisis mapping in an emergency situation. Comparison of four case studies: Haiti, Kibera, Kathmandu, Centre Italy. GEOmedia, [S. l.], v. 21, n. 3, 2017. Disponível em: https://ojs.mediageo.it/index.php/GEOmedia/article/view/1445. Acesso em: 31 jan. 2026.