@book { ElectronicCommerce,
    title = "Electronic Commerce",
    subtitle = "Chancen und Risiken des Internet als Vertriebsmedium",
    author = "Sven {Kusch}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832423735",
    url = "https://m.diplom.de/document/218187"
}