@book { SubventionierungderffentlichenBhnen,
    title = "Subventionierung der öffentlichen Bühnen?",
    author = "Simon {Herrmann}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832464325",
    url = "https://m.diplom.de/document/221856"
}