1. 3) Stevens, W. D. : RocFall, a tool for probabilistic analysis, design of remedial measures and prediction of rockfalls, A thesis submitted in conformity with the requirements for the degree of Master of Applied Science Graduate Department of Civil Engineering University of Toronto, 1998.
2. 4) Cundall, P. A. : A Computer model for simulating progressive, Large Scale movement in blocky rock system, Proceedings of ISRM Symposium, pp.11-18, 1971.
3. 5) Shi, G. H. and Goodman, R. E. : Discontinuous deformation analysis, U. S. symposium on rock mechanics, pp. 269-277, 1984.
4. 10) Lan, H., Martin, C. D. and Lim, C. H. : RockFall analyst: A GIS extension for three-dimensional and spatially distributed rockfall hazard modeling, Computer & Geosciences, Vol.33, pp.262-279, 2007.
5. 12) McLachlan, G. J. and Basford, K. E. : Mixture Models: Inference and Applications to Clustering, Marcel Dekker, 1988.