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 "吉原, 直毅 and Veneziani, Roberto",The measurement of labour content : a general approach,,"Institute of Economic Research, Hitotsubashi University",2017,Discussion paper series,,,,https://cir.nii.ac.jp/crid/1130282271433459840