@book { UnternehmensExcellenceModelleEFQM,
    title = "Unternehmens Excellence Modelle (EFQM)",
    author = "Karin {Hohmann}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836629041",
    url = "https://m.diplom.de/document/226757"
}