Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Zhang Long and Chen Zhenghan,"Experimental investigation on two stress variables proposed by Fredlund from deformation, strength and moisture change under triaxial state of stress",Japanese Geotechnical Society Special Publication,2188-8027,The Japanese Geotechnical Society,2019-04-30,7,2,70-77,https://cir.nii.ac.jp/crid/1390845713088077184,https://doi.org/10.3208/jgssp.v07.010