Preface: Landslide early warning systems: monitoring systems, rainfall thresholds, warning models, performance evaluation and risk perception"

Segoni S., Piciullo L., Gariano S.L. (2018) Preface of the special issue "Landslide early warning systems: monitoring systems, rainfall thresholds, warning models, performance evaluation and risk perception”, on Natural Hazards and Earth System Sciences journal. doi: 10.5194/nhess-18-3179-2018 [https://www.nat-hazards-earth-syst-sci.net/18/3179/2018/]