@book { BalancedScorecardalsInstrumentdesControlling,
    title = "Balanced Scorecard als Instrument des Controlling",
    author = "Kristin {de Laporte}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832443146",
    url = "https://m.diplom.de/document/219916"
}