1. Aleotti, P.: A warning system for rainfall-induced shallow failures, Eng. Geol., 73, 247–265, 2004.
2. Brand, E. W., Premchitt, J., and Phillipson, H. B.: Relationship between rainfall and landslides in Hong Kong, Proc. 4th Int. Symp. on Landslides, Toronto, 1, 377–384, 1984.
3. Brunetti, M. T., Peruccacci, S., Rossi, M., Luciani, S., Valigi, D., and Guzzetti, F.: Rainfall thresholds for the possible occurrence of landslides in Italy, Nat. Hazards Earth Syst. Sci., 10, 447–458, https://doi.org/10.5194/nhess-10-447-2010, 2010.
4. Caine, N.: The rainfall intensity-duration control of shallow landslides and debris flows, Geograf. Annal, 62A, 23–27, 1980.
5. Calcaterra, D., Parise, M., Palma, B., and Pelella, L.: The influence of meteoric events in triggering shallow landslides in pyroclastic deposits of Campania, Italy, in: Landslides in research, theory and practice, edited by: Bromhead, E., Dixon, N., and Ibsen, M. L., Proc. 8th International Symposium on Landslides, Cardiff, 1, 209–214, 2000.