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 "Hu, Zuliu and Folkerts-Landau, David",Risk-taking and optimal taxation with nontradable human capital,,International Monetary Fund,1992,IMF working paper,,,,https://cir.nii.ac.jp/crid/1130282273244697344