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) Tohru Naito and Hikaru Ogawa,Direct versus indirect environmental regulation in a partially privatized mixed duopoly,Environmental Economics and Policy Studies,1432-847X,Springer Science and Business Media LLC,2009-06,10,2-4,87-100,https://cir.nii.ac.jp/crid/1361418520048652160,https://doi.org/10.1007/bf03353980