@Article{96453, author = "Bartosz Klusek", title = ""Custom. The Development and Use of a Legal Concept in the Middle Ages, Proceeding of the Fifth Carlsberg Academy Conference on Medieval Legal History 2008", ed. Per Andersen, Mia Münster-Swendsen, Kopenhaga 2009 : [recenzja] ", year = 2011, volume = 31, number = , journal = Res Historica, pages = s. 289-292, }