@book { MglichkeitenvonMerchandisingfrNonprofitOrganisationen,
    title = "Möglichkeiten von Merchandising für Nonprofit-Organisationen",
    author = "Markus {Berg}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832410322",
    url = "https://m.diplom.de/document/216925"
}