@book { DieBalancedScorecardfrKulturbetriebe,
    title = "Die Balanced Scorecard für Kulturbetriebe",
    author = "Bernd {Klausberger}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832480882",
    url = "https://m.diplom.de/document/223316"
}