Einstein, H.H., and Sousa, R. (2006). Warning system for natural threats. In: Proceedings of Geohazards 2006 (F. Nadim, H.H. Einstein, R. Pottler, H. Klapperich, S. Kramer, eds.), 18-21 June 2006, Lillehammer, Norway, pp. 1-38. New York, NY: Engineering Conferences International. Retrieved from http://dc.engconfintl.org/geohazards/1/