@book { ffentlicheFinanzeninderDemokratie,
    title = "Öffentliche Finanzen in der Demokratie",
    author = "Charles B. {Blankart}",
    year = "2017",
    publisher = "Vahlen",
    address = "München, Deutschland",
    url = "https://vahlen.openpublishing.com/document/1221019"
}