Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yuasa Yoshikazu,Unit Root and Cointegration Tests of Interest Rate in the US and the Eurocurrency Market,Surugadai economic studies,09173226,Surugadai University,1997-03,6,2,117-141,https://cir.nii.ac.jp/crid/1570009752330102400,