@book{ BC04119499, author = "Bersier Ladavac, Nicoletta and Bezemek, Christoph and Schauer, Frederick F.", title = "The normative force of the factual : legal philosophy between is and ought", publisher = "Springer", year = "2019", series = "Law and philosophy library", number = "v. 130", URL = "https://ci.nii.ac.jp/ncid/BC04119499" }