@book { ProminentealsMarkenbotschafterChancenRisikenundHerausforderungen,
    title = "Prominente als Markenbotschafter: Chancen, Risiken und Herausforderungen",
    author = "Anna-Lena {Dudek}",
    year = "2015",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/297800"
}