Arnold, A., Hübl, J., Suriñach, E., Vilajosana, I., Zhang, S., Yun, N. and McArdell, B. (2011) “A Study of Infrasonic Signals of Debris flows”, Italian journal of engineering geology and environment, pp. 563–572. doi: 10.4408/IJEGE.2011-03.B-062.