@book { TheTransformingPowerofBusinesstoBusinessElectronicBusiness,
    title = "The Transforming Power of Business-to-Business Electronic Business",
    author = "Christoph {Wenna}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832476519",
    url = "https://m.diplom.de/document/222925"
}