@book { CulturalDueDiligence,
    title = "Cultural Due Diligence",
    author = "Melanie {Knittel}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832459833",
    url = "https://m.diplom.de/document/221431"
}