@book { ErfolgsfaktorendesErlebnismarketing,
    title = "Erfolgsfaktoren des Erlebnismarketing",
    author = "David {Neumann}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832458485",
    url = "https://m.diplom.de/document/221312"
}