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) ,Evaluation on environmental efficiency of the iron companies in China-water and energy-,Proceedings of annual conference of environmental study 2006,,,2006,,,76-77,https://cir.nii.ac.jp/crid/1010000781937808269,