@book { DieRollederModemarkeheuteundinderZukunft,
    title = "Die Rolle der Modemarke – heute und in der Zukunft",
    author = "Andrea {Ruhland}",
    year = "2015",
    publisher = "BACHELOR + MASTER PUBLISHING",
    address = "Hamburg, Deutschland",
    url = "https://m.bachelor-master-publishing.de/document/297829"
}