1. Aboim C. A. and Roth W. H. “Bounding Surface Plasticity Applied to Cyclic Loading of Sand ” International Symposium on Numerical Models in Geomechanics Zurich Switzerland 1982 pp. 65–72.
2. Elastic-Plastic Model for Saturated Sand
3. Bardet J. P. “Application of Plasticity Theory to Sand Behavior a New Sand Model ” thesis presented to the California Institute of Technology at Pasadena Calif. in 1983 in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
4. Endochronic Constitutive Law for Liquefaction of Sand
5. Densification and Hysteresis of Sand Under Cyclic Shear