@book { BalancingtheValueBasedCorporateScorecard,
    title = "Balancing the Value-Based Corporate Scorecard",
    author = "Mario {Schmidt}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832488529",
    url = "https://m.diplom.de/document/224030"
}