@book { VerbesserungderSupplyChainLeistungaufBasisdesSCORModells,
    title = "Verbesserung der Supply Chain Leistung auf Basis des SCOR-Modells",
    author = "Helfried {Zimmermann}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640148271",
    url = "https://www.hausarbeiten.de/document/113449"
}