3Axel VOLKWEIN, Louis MELIS, Bruno HALLER, etc. Protection from landslides and high speed rockfall events - reconstruction of chapman ' s peak drive. IMIESA, Vol. 28, Issue 11, Nov/Dec 2003, pp. 29 - 37, ISSN 02571978.
4D. HANTZ, C. DUSSAUGE -PEISSER, M. JEANNIN, etc. Rock fall hazard assessment: from qualitative to quantitative failure probability. Fast slope movements, Naples, 2003, pp. 263 -267.
5F. Baillifard, M. Jaboyedoff, M. Sartori, "Rockfall hazard mapping along a mountainous road in Switzerland using a GIS - based parameter rating approach", Natural Hazards and Earth System Sciences (2003) 3:431 - 438.
