@book { EthikundWerbung,
    title = "Ethik und Werbung",
    subtitle = "Eine kritische Literaturanalyse",
    author = "Philipp {Brökelmann}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/218167"
}