1. Modelling the soil behaviour?selection of soil parameters. General Report. Proceedings of the International Symposium on The Geotechnics of Hard Soils-Soft Rocks, vol. 3. Napoli, 1998; 1441-1481.
2. Mechanical behaviour of soft rocks: some remarks. Proceeding of the Workshop on Experimental Characterisation and Modelling of Soils and Soft Rocks. Napoli, 1991; 191-223.
3. The influence of bond strength on the mechanics of carbonate soft rocks. Proceedings of the International Symposium On Geotechnical Engineering of Hard Soils and Soft Rocks. vol. 1. Athens, 1993; 447-455.
4. Shear behaviour and stiffness of naturally cemented sands. Ph D. Thesis. City University, 1995.
5. An experimental and theoretical study of the behaviour of a calcarenite in triaxial compression