@book { WahlprognosenimInternet,
    title = "Wahlprognosen im Internet",
    subtitle = "Innovative Ansätze in der Wahlforschung am Beispiel von Internet-Wahlwetten",
    author = "Markus {Tiesmeyer}",
    year = "2007",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/228950"
}