@book { FranksCasket,
    title = "Franks Casket",
    subtitle = "Zu den Bildern und Inschriften des Runenkästchens von Auzon",
    author = "Alfred {Becker}",
    year = "1973",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1073767"
}