@book { UnglaublichglaubhaftDieArengenRhetorikdesAvignonenserPapsttums,
    title = "Unglaublich glaubhaft: Die Arengen-Rhetorik des Avignonenser Papsttums",
    author = "Hermann {Hold}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1512094"
}