@book { ReligionsfreiheitundFrieden,
    title = "Religionsfreiheit und Frieden",
    author = "Joachim {Gaertner} and Erika {Godel}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101439"
}