著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Samakovlis, Eva","Economics of paper recycling : efficiency, policies, and substitution possibilities",,Umeå University,2001,Umeå economic studies,,9173050911,,https://cir.nii.ac.jp/crid/1130282271784390144