著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) GENS A.,Conceptual bases for a constitutive model for bonded soils and weak rocks,Geotech. Engrg. of Hard Soils-Soft Rocks,,Balkema,1993,,,,https://cir.nii.ac.jp/crid/1572261549799766528,