@book { LanguageandBusiness,
    title = "Language and Business",
    author = "Sylvia-Michèle {Sternkopf}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832481612",
    url = "https://m.diplom.de/document/223384"
}