@book { Unternehmenskultur,
    title = "Unternehmenskultur",
    author = "Katja {Rost}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836619325",
    url = "https://m.diplom.de/document/226141"
}