@book { DasManagementschnellwachsenderUnternehmen,
    title = "Das Management schnell wachsender Unternehmen",
    author = "Johannes {Clemm}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832450038",
    url = "https://m.diplom.de/document/220563"
}