@book { OrganisationsformeninternationalerUnternehmen,
    title = "Organisationsformen internationaler  Unternehmen",
    author = "Niko {Tiriakidis}",
    year = "2014",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/285060"
}