@book { NikolajGumilevandNeoclassicalModernism,
    title = "Nikolaj Gumilev and Neoclassical Modernism",
    subtitle = "The Metaphysics of Style",
    author = "Raoul {Eshelman}",
    year = "1993",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1081420"
}