@book { DasGelddesKnigs,
    title = "Das Geld des Königs",
    subtitle = "Zu den finanziellen Beziehungen zwischen Krone und Adel in England 1154-1216",
    author = "Udo {Göllmann}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b20148",
    url = "https://www.peterlang.com/document/1263934"
}