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) A. Lisjak and G. Grasselli and T. Vietor,Continuum–discontinuum analysis of failure mechanisms around unsupported circular excavations in anisotropic clay shales,International Journal of Rock Mechanics and Mining Sciences,1365-1609,Elsevier BV,2014-01,65,,96-115,https://cir.nii.ac.jp/crid/1362262944668304512,https://doi.org/10.1016/j.ijrmms.2013.10.006