@book { AktuelleBeitrgezumKirchenrecht,
    title = "Aktuelle Beiträge zum Kirchenrecht",
    author = "Rüdiger {Althaus} and Rosel {Oehmen-Vieregge} and Jürgen {Olschewski}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093701"
}