@book { DasThemaWerbunginderGrundschule,
    title = "Das Thema Werbung in der Grundschule",
    author = "Franziska {Dedow}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640699711",
    url = "https://www.hausarbeiten.de/document/155947"
}