@book { ffentlichkeitundVerantwortung,
    title = "Öffentlichkeit und Verantwortung",
    author = "Michael Wolfgang {Kramer}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832419073",
    url = "https://m.diplom.de/document/217755"
}