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 "Bersier Ladavac, Nicoletta and Bezemek, Christoph and Schauer, Frederick F.",The normative force of the factual : legal philosophy between is and ought,,Springer,2019,Law and philosophy library,,9783030189280,,https://cir.nii.ac.jp/crid/1130282273175792256