@book { JosephASchumpeterDemokratiealsMethodeEineAnalyse,
    title = "Joseph A. Schumpeter: Demokratie als Methode - Eine Analyse",
    author = "Denis {Köklü}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640913190",
    url = "https://www.hausarbeiten.de/document/171654"
}