@book { DatenschutzimElectronicGovernment,
    title = "Datenschutz im Electronic Government",
    author = "Sigrun {Fricke}",
    year = "2007",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836604291",
    url = "https://m.diplom.de/document/228942"
}