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 "Kröger, Sandra",Political representation in the European Union : still democratic in times of crisis?,,Routledge,2014,Routledge advances in European politics,,9780415835145,,https://cir.nii.ac.jp/crid/1130000798244693632