@book { ImageundKommunikationdesGalopprennsportsinDeutschland,
    title = "Image und Kommunikation des Galopprennsports in Deutschland",
    author = "Natja {Henkenjohann}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    url = "https://m.diplom.de/document/227941"
}