@book { KommunikationskooperationenmitMedien,
    title = "Kommunikationskooperationen mit Medien",
    author = "Andrea {Koran}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832489595",
    url = "https://m.diplom.de/document/224120"
}