1. Chang, C. J., 1981. Seismic Safety Analysis of Slopes. Ph.D. Thesis, School of Civil Engineering, Purdue University, West Lafayette, IN, 125 pp.
2. Seismic displacements in slopes by limit analysis;Chang;J. Geotech. Eng., ASCE,1984
3. Chang, C.J., Chen, W.F. and Yao, J.T.P., 1985. Evaluation of seismic factor of safety of a submarine slope by limit analysis, Proc. 1983 Symposium on Marine Geotechnology and Near Shore/Offshore Structures, Shanghai, China, Tongi University Press, pp. 262–295.
4. Limit Analysis and Soil Plasticity;Chen,1975
5. Plasticity in soil mechanics and landslides;Chen;J. Eng. Mech. Div., ASCE,1980