@book { PerformanceMeasurementinSupplyChains,
    title = "Performance Measurement in Supply Chains",
    author = "Dr. Frank {Gebhardt}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640335602",
    url = "https://www.hausarbeiten.de/document/127579"
}