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) Lawrence A. Gordon and Martin P. Loeb,The economics of information security investment,ACM Transactions on Information and System Security,1094-9224,Association for Computing Machinery (ACM),2002-11,5,4,438-457,https://cir.nii.ac.jp/crid/1362825894883560960,https://doi.org/10.1145/581271.581274