@book { JosephConradTheSecretAgent,
    title = "Joseph Conrad: The Secret Agent",
    subtitle = "Text und zeitgeschichtlicher Kontext",
    author = "Gudrun {Kauhl}",
    year = "1986",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1075486"
}