@book { ShareholderValueEinKonzeptimNiedergang,
    title = "Shareholder Value - Ein Konzept im Niedergang?",
    author = "Stephan {Martin}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832495336",
    url = "https://m.diplom.de/document/224660"
}