@book { EntwurfundRealisierungeinesTrustCenters,
    title = "Entwurf und Realisierung eines Trust Centers",
    author = "Dieter {Pawelczak}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/221774"
}