@book { UsabilityimWorldWideWeb,
    title = "Usability im World Wide Web",
    author = "Christian {Osterbauer}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832426170",
    url = "https://m.diplom.de/document/218402"
}