@book { SpracheIdentitt,
    title = "Sprache & Identität",
    subtitle = "Exemplarische Untersuchung am Beispiel von Katalonien",
    author = "Michelle {Prinz}",
    year = "2020",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/925215"
}