1. Saturation of sand specimen for calibration chamber tests;Bellotti;Proc. ISOPT-1,1988
2. Weight sounding test (WST): International reference test procedure;Bergdahl,1988
3. Empirical correlation between SPT N-value and relative density for sandy soils;Cubrinovski;Soils and Foundations,1999
4. Flow potential of sandy soils with different compositions;Cubrinovski;Soils and Foundations,2000
5. Research on determining the relative density of sand by spoon penetration test;Gibbs;Proc. 4th ICSMFE,1957