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
"Wulf, Alexander J.",Institutional competition between optional codes in European contract law : a theoretical and empirical analysis,,Springer Gabler,2014,Research,,9783658058005,,https://cir.nii.ac.jp/crid/1130282271256246528