@book { IsttheologischeEthikphilosophischmglich,
    title = "Ist theologische Ethik philosophisch möglich?",
    author = "Claus {Müller}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1092559"
}