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) Wolfgang Barthel and Alexander K. Hartmann,Clustering analysis of the ground-state structure of the vertex-cover problem,Physical Review E,1539-3755,American Physical Society (APS),2004-12-10,70,6,,https://cir.nii.ac.jp/crid/1364233269378170368,https://doi.org/10.1103/physreve.70.066120