@book { Gumilvskietenija,
    title = "Gumilëvskie čtenija",
    author = "V. F. {Martynov}",
    year = "1984",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12913",
    url = "https://www.peterlang.com/document/1067268"
}