@book { MallorcaunddieMedien,
    title = "Mallorca und die Medien",
    author = "Volker {Kuntzsch}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832424527",
    url = "https://m.diplom.de/document/218250"
}