@book { SupplyChainManagementinkleinenundmittlerenUnternehmen,
    title = "Supply Chain Management in kleinen und mittleren Unternehmen",
    author = "Murat {Karaarslan}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832442002",
    url = "https://m.diplom.de/document/219819"
}