@book { MarkenentwicklungfreineNonProfitOrganisation,
    title = "Markenentwicklung für eine Non-Profit-Organisation",
    author = "Johannes {Staud}",
    year = "2010",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836642026",
    url = "https://m.diplom.de/document/227562"
}