@book { ChancenundRisikenvoneProcurementinIndustriebetrieben,
    title = "Chancen und Risiken von eProcurement in Industriebetrieben",
    author = "Martin {Strauss}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832450342",
    url = "https://m.diplom.de/document/220184"
}