@book { ReporttoCocaColaMarketingDirector,
    title = "Report to Coca-Cola Marketing Director",
    author = "Bettina {Carollo}",
    year = "2012",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656192879",
    url = "https://www.hausarbeiten.de/document/191742"
}