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 "Koo, Sung-Yeal",A demographic-economic model for Korea : long-term demographic prospect and policy impacts,,Korea Development Institute,1982,Working paper,,,,https://cir.nii.ac.jp/crid/1130282270497259520