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) Martin Weigt and Alexander K. Hartmann,Number of Guards Needed by a Museum: A Phase Transition in Vertex Covering of Random Graphs,Physical Review Letters,0031-9007,American Physical Society (APS),2000-06-26,84,26,6118-6121,https://cir.nii.ac.jp/crid/1362544420325960704,https://doi.org/10.1103/physrevlett.84.6118