@book { ThePoetryofAnnaAkhmatova,
    title = "The Poetry of Anna Akhmatova",
    subtitle = "A Conquest of Time and Space",
    author = "Sonia I. {Ketchian}",
    year = "1986",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12663",
    url = "https://www.peterlang.com/document/1067080"
}