@book { kumenischjaaberbittegetrennt,
    title = "Ökumenisch ja - aber bitte getrennt?",
    author = "Daniela {Bayer-Wied}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135504"
}