@book { DasHandyalsaudiovisuellesMediumderZukunft,
    title = "Das Handy als audiovisuelles Medium der Zukunft",
    author = "Sebastian {Teiwes}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836624961",
    url = "https://m.diplom.de/document/226483"
}