1. Peuchen, J., Adrichem, J., Hefer, P.A.: Practice notes on push-in penetrometers for offshore geotechnical investigation. In: International Symposium on Frontiers in Offshore Geotechnics (ISFOG), Perth, Australia, pp. 973–979 (2005)
2. Randolph, M.F.: Characterisation of soft sediments for offshore applications. In: 2nd International Conference on Geotechnical and Geophysical Site Characterization (ISC-2), pp. 209–231 (2004)
3. DeJong, J.T., Yafrate, N.J., DeGroot, D.J.: Evaluation of undrained shear strength using full-flow penetrometers. J. Geotech. Geoenviron. Eng. ASCE 137(1), 14–26 (2011)
4. Lu, Q., Hu, Y., Randolph, M.F.: FE analysis for T-bar and spherical penetrometers in cohesive soil. In: 10th International Offshore and Polar Engineering Conference, pp. 617–623 (2000)
5. Zhou, H., Randolph, M.F.: Effect of shaft on resistance of a ball penetrometer. Géotechnique 61(11), 973–981 (2011)