@book { DieRotaRomana,
    title = "Die Rota Romana",
    subtitle = "Wesen und Wirken des päpstlichen Gerichtshofes im Wandel der Zeit",
    author = "Stefan {Killermann}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01133-3",
    url = "https://www.peterlang.com/document/1054149"
}