@book { Hypermediakompetenz,
    title = "Hypermediakompetenz",
    author = "Ilona {Hündgen}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832477776",
    url = "https://m.diplom.de/document/223046"
}