@book { NegativeSpring,
    title = "Negative Spring",
    subtitle = "Crisis Imagery in the Works of Brentano, Lenau, Rilke, and T.S. Eliot",
    author = "David B. {Dickens}",
    year = "1989",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1078509"
}