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
"Bergström, Villy and Vredin, Anders",Measuring and interpreting business cycles,,Clarendon Press,1994,FIEF studies in labour markets and economic policy,,019828859X,,https://cir.nii.ac.jp/crid/1130000795743740800