@book { VergleichendeWerbung,
    title = "Vergleichende Werbung",
    author = "Danijela {Saponjic}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832480400",
    url = "https://m.diplom.de/document/223273"
}