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Rikkers, Mark; Rodriguez, Aaron (23 June 2009). "Anatomy of an Avalanche". Telluridemagazine.com. Telluride Publishing. Archived from the original on 19 August 2016. Retrieved 3 October 2016.
Lobo-Guerrero, Sebastian. (2007-03-23). "Influence of pile shape and pile interaction on the crushable behavior of granular materials around driven piles: DEM analyses" (em en). Granular Matter 9 (3–4): 241. doi:10.1007/s10035-007-0037-3. ISSN1434-5021.