@book { MarketingimKrankenhaus,
    title = "Marketing im Krankenhaus",
    author = "Stefanie {Dupont}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640917358",
    url = "https://www.hausarbeiten.de/document/172038"
}