著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Leroueil,The general and congruent effect of structure in natural soils and weak rocks,Géothecnique,,,1990,40,3,467,https://cir.nii.ac.jp/crid/1370850889082251777,