@book { CorporateIdentityimInternet,
    title = "Corporate Identity im Internet",
    author = "Cornelia {Wies}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832408961",
    url = "https://m.diplom.de/document/216797"
}