@book { StatusQuoundErfolgschancenvonPremiumhandelsmarken,
    title = "Status Quo und Erfolgschancen von Premiumhandelsmarken",
    author = "Katharina {Maul}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836636612",
    url = "https://m.diplom.de/document/227243"
}