1. , , . Deep penetration in soft clay with strength increasing with depth. Proceedings of the 11th International Conference on Offshore and Polar Engineering, ISOPE 01, vol. 2, Stavanger, 2001; 453-458.
2. , . Pore pressure fields around piezocone penetrometers installed in clays. In Computer Methods and Advances in Geomechanics, , (eds), vol. 1. Balkema: Rotterdam, 1991; 285-290.
3. An analytical study of the cone penetration test in clay
4. Strain-Hardening and Strain-Rate Effects in Plastic Flow Through Conical Converging Dies