@book { McWorldoderMulitkulti,
    title = "McWorld oder Mulitkulti?",
    author = "Martin {Zülch}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832462437",
    url = "https://m.diplom.de/document/221465"
}