hill, K.M., Yohannes bereket, William E. dietrich, and Leslie hsu. “Discrete Element Modeling and Large Scale Experimental Studies of Bouldery Debris Flows”. Italian journal of engineering geology and environment (November 30, 2011): 435–447. Accessed November 22, 2024. https://rosa.uniroma1.it/rosa02/engineering_geology_environment/article/view/1254.