@book { BildweltenzuAIDS,
    title = "Bildwelten zu AIDS",
    subtitle = "Die Immunschwäche im Spiegel der Printmedien",
    author = "Jürgen {Beule}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1087108"
}