@book { OpenBuyingontheInternetPotentialeeinesStandardsimeBusiness,
    title = "Open Buying on the Internet: Potentiale eines Standards im eBusiness",
    author = "Sonja {Schmithals}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832432645",
    url = "https://m.diplom.de/document/218951"
}