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 "Junge, Kerstin","Flexibility, enhanced cooperation and the Treaty of Amsterdam",,Kogan Page,1999,European dossier series,,0749430230,,https://cir.nii.ac.jp/crid/1130282269123775232