@book { DieSchatteneinerFamilie,
    title = "Die Schatten einer Familie",
    subtitle = "Roman | Die Knight-Saga, Band 2",
    author = "Sarah {Smith} and Mechtild {Sandberg-Ciletti}",
    year = "2023",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/1194536"
}