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) Daniel (Jian) Sun and Shituo Guan,Measuring vulnerability of urban metro network from line operation perspective,Transportation Research Part A: Policy and Practice,0965-8564,Elsevier BV,2016-12,94,,348-359,https://cir.nii.ac.jp/crid/1360298341254825600,https://doi.org/10.1016/j.tra.2016.09.024