@book { ShareholderValueundStakeholderAnsatz,
    title = "Shareholder Value und Stakeholder-Ansatz",
    author = "Ralf {Schelletter}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832415242",
    url = "https://m.diplom.de/document/217369"
}