@book { DieWitweWemkannsienochtrauen,
    title = "Die Witwe – Wem kann sie noch trauen?",
    author = "Ruth {Newman} and Susanne {Engelhardt}",
    year = "2023",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/1216311"
}