@book { InfotainmentimWartezimmerEinfiktiverBusinessplan,
    title = "Infotainment im Wartezimmer - Ein fiktiver Businessplan",
    author = "Christian {Offermann}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836632492",
    url = "https://m.diplom.de/document/227022"
}