Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Sano, Ikuo",Energy efficiency of steel industry in U.S.A. and its cause; In comparison with Japan : A study for construction of low-carbon industrial structure,"Annals, Public Policy Studies",18819818,北海道大学公共政策大学院,2014-05-30,8,,55-80,https://cir.nii.ac.jp/crid/1050001339018217856,