@book { FhrungsverhalteninderWirtschaftskrise,
    title = "Führungsverhalten in der Wirtschaftskrise",
    author = "David Michael {Näher}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832408497",
    url = "https://m.diplom.de/document/216753"
}