Leveraging volunteered geographic information to improve disaster resilience: lessons learned from AGORA and future research directions - Albuquerque, João Porto de; Horita, Flávio Eduardo Aoki; Degrossi, Livia Castro; Rocha, Roberto dos Santos; Andrade, Sidgley Camargo de; Restrepo Estrada, Camilo Ernesto; Leyh, Werner (Volunteered geographic information and the future of geospatial data, 2017)