1. A constitutive model for partially saturated soils
2. Alonso, E.E., Lloret, A. Gens, A. and Yang, D.Q. (1995) Experimental behavior of highly expansive double-structure clay. In Proceedings First International Conference on Unsaturated Soil, Paris, Vol. 1. pp. 11–16.
3. Booth, A.R. (1975) The factors influencing collapse settlement in compacted soils. In Proceedings of Fourth International Conference on Expansive Soil. Colorado, pp. 117–134.
4. A state-dependent elasto-plastic model for saturated and unsaturated soils