@book { EschatologieundEthikimfrhenChristentum,
    title = "Eschatologie und Ethik im frühen Christentum",
    author = "Christfried {Böttrich}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100953"
}