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 "Kaufer, Erich",The economics of the patent system,,Routledge,2001,Harwood fundamentals of pure and applied economics,,"0415269288,041526930X",,https://cir.nii.ac.jp/crid/1130282272239900032