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) F. M. Burdekin and D. E. W. Stone,The crack opening displacement approach to fracture mechanics in yielding materials,Journal of Strain Analysis,0022-4758,SAGE Publications,1966-01-01,1,2,145-153,https://cir.nii.ac.jp/crid/1363951795359716096,https://doi.org/10.1243/03093247v012145