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) Downs Robert R. and Marshall James J.,A Proposal on Using Reuse Readiness Levels to Measure Software Reusability,Data Science Journal,1683-1470,CODATA,2010,9,0,73-92,https://cir.nii.ac.jp/crid/1390001205233189888,https://doi.org/10.2481/dsj.009-007