@book { BalancedScorecardalsInstrumentzurSteuerungderBeschaffung,
    title = "Balanced Scorecard als Instrument zur Steuerung der Beschaffung",
    author = "Dennis {Mürl}",
    year = "2010",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640574711",
    url = "https://www.hausarbeiten.de/document/146037"
}