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 "Baetens, Freya",Legitimacy of unseen actors in international adjudication,,Cambridge University Press,2019,Studies on international courts and tribunals,,9781108485852,,https://cir.nii.ac.jp/crid/1130000796105092864