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 "Krämer-Hoppe, Rike","Positive integration - EU and WTO approaches towards the ""trade and"" debate",,Springer,2020,European yearbook of international economic law,,9783030256616,,https://cir.nii.ac.jp/crid/1130285376204324736