@book{ BB16421927, author = "Renner, Karl and Kahn-Freund, Otto, Sir and Schwarzschild, Agnes", title = "The institutions of private law and their social functions", publisher = "Routledge", year = "2013", series = "International library of sociology", number = "208", URL = "https://ci.nii.ac.jp/ncid/BB16421927" }