@book { ZehnKapitelzurGeschichtederEleonorevonAquitanien, title = "Zehn Kapitel zur Geschichte der Eleonore von Aquitanien", author = "Daniela {Laube}", year = "1985", publisher = "Peter Lang Verlag", address = "Lausanne, Switzerland", url = "https://www.peterlang.com/document/1070864" }