@book { NachahmungimWettbewerb,
    title = "Nachahmung im Wettbewerb",
    subtitle = "Umfang und Grenzen",
    author = "Carolin {Widera}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836625296",
    url = "https://m.diplom.de/document/226504"
}