@book { UmweltberichterstattunginMassenmedien,
    title = "Umweltberichterstattung in Massenmedien",
    author = "Insa {Reichwehr}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832401092",
    url = "https://m.diplom.de/document/216062"
}