@book { ProductPlacementinSpielfilmen,
    title = "Product Placement in Spielfilmen",
    subtitle = "Am Beispiel der Fallstudie BMW Z3 Roadster",
    author = "Florian {Saeftel}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656097846",
    url = "https://www.hausarbeiten.de/document/184933"
}