1. ASTMD2850-03. Standard test method for unconsolidated-undrained triaxial compression test on cohesive soils.
2. The structure of clay and its importance in foundation engineering;Casagranda;Boston Soc. Civ. Eng. J.,1932
3. Geological and geotechnical characteristic of some loess and loessic soil from China and Britain: a comparison;Derbyshire;Eng. Geol.,1988
4. Microstructure classification of loess and collapsibility;Gao;Sci. China A,1980
5. Evaluation of loess collapsibility based on principal components of microstructural parameters;Gao;Rock Soil Mech.,2012