@book { InteraktiveMultimedialeLehreinheit,
    title = "Interaktive Multimediale Lehreinheit",
    subtitle = "Lehrinhalt: Lokale PC Netzwerke",
    author = "Thomas {Radel}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/220859"
}