@book { NeuereTendenzenderSowjetischenScienceFiction,
    title = "Neuere Tendenzen der Sowjetischen Science Fiction",
    author = "Hans {Földeak}",
    year = "1975",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12504",
    url = "https://www.peterlang.com/document/1066968"
}