Columbia subject headings:
Fantasy fiction, Russian--History and criticism.
Russian fiction--20th century--History and criticism.
Science fiction, Russian--History and criticism.
Harvard subject headings:
Science fiction, Soviet--History and criticism.
Scientists in literature
Utopias in literature.
Princeton subject headings:
Fantasy fiction, Russian--History and criticism.
Russian fiction--20th century--History and criticism.
Science fiction, Russian--History and criticism.