@book { Werbeplagiate,
    title = "Werbeplagiate",
    author = "Katharina {Zering}",
    year = "2011",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842812772",
    url = "https://m.diplom.de/document/228440"
}