References
- Kulhawy, F. H., and P. W. Mayne. 1990. Manual on Estimating Soil Properties for Foundation Design. Electric Power Research Institute EL-6800, Electric Power Research Institute, Palo Alto, California.
- Phoon, K. K., and F. H. Kulhawy. 1999. “Characterization of Geotechnical Variability.” Canadian Geotechnical Journal 36 (4): 612–624. doi: 10.1139/t99-038
- Robertson, P. K. 2012. Interpretation of in-situ tests - some insights. J.K. Mitchell Lecture, Proceedings of 4th International Conference on Site Characterization (ISC-4), Brazil.
- Robertson, P. K., and K. L. Cabal. 2015. Guide to Cone Penetration Testing for Geotechnical Engineering. 6th ed. Signal Hill, California: Gregg Drilling & Testing, Inc.
- Robertson, P. K., and R. G. Campanella. 1983. “Interpretation of Cone Penetration Tests. Part I: Sand.” Canadian Geotechnical Journal 20 (4): 718–733. doi: 10.1139/t83-078