Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) WAKATSUKI Tsuyoshi and SASAKI Yoshinori and TANAKA Yukiya and MATSUKURA Yukinori,Predictive equation of shear-strength parameters and permeability of grus using by unit weight and grain size,Sabo Gakkaishi,02868385,Japan Society of Erosion Control Engineering,2005,58,4,13-21,https://cir.nii.ac.jp/crid/1390282679043451904,https://doi.org/10.11475/sabo1973.58.4_13