@book { DigitalRightsManagementundderRechtsschutzimWorldWideWeb,
    title = "Digital Rights Management und der Rechtsschutz im World Wide Web",
    author = "Michael {Zöchling}",
    year = "2009",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640348787",
    url = "https://www.hausarbeiten.de/document/128949"
}