@book { RaubkopienbeiDVDsundCDs,
    title = "Raubkopien bei DVDs und CDs",
    author = "Dirk {Engelbertz}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/224770"
}