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) R.K. Valenta and D. Kemp and J.R. Owen and G.D. Corder and É. Lèbre,Re-thinking complex orebodies: Consequences for the future world supply of copper,Journal of Cleaner Production,0959-6526,Elsevier BV,2019-05,220,,816-826,https://cir.nii.ac.jp/crid/1360011143783722496,https://doi.org/10.1016/j.jclepro.2019.02.146