@book { MarinaCvetaeva,
    title = "Marina Cvetaeva",
    author = "Lev A. {Mnuchin}",
    year = "1992",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12865",
    url = "https://www.peterlang.com/document/1067236"
}