@book { LiebeserklrungeninderWerbung,
    title = "Liebeserklärungen in der Werbung",
    author = "Julia {Liedtke}",
    year = "2013",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656480426",
    url = "https://www.hausarbeiten.de/document/231525"
}