@book { Hereditas,
    title = "«Hereditas»",
    subtitle = "Aspekte eines Wortgebrauchs in Spätantike und frühem Mittelalter",
    author = "Urban {Kressin}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108403"
}