@book{ title = "Die "Rechtssumme" Bruder Bertholds", author = "Hamm, Marlies,Ulmschneider, Helgard,Berthold,Johannes", year = "1991", publisher = "Niemeyer", address = "Tübingen", title = "eine deutsche abecedarische Bearbeitung der "Summa confessorum" des Johannes von Freiburg", language = "ger","lat", howpublished = "print", isbn = "348436016X", pages = "25 cm", series = "Texte und Textgeschichte. Würzburger Forschungen, 16", }