@book { DieSndeeinesSohnes,
    title = "Die Sünde eines Sohnes",
    author = "Sarah {Smith} and Susanne {Kundmüller-Bianchini}",
    year = "2023",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/1194538"
}