Columbia subject headings:
Harvard subject headings:
Russian literature--20th century--History and criticism--Congresses
Russian literature--21st century--History and criticism--Congresses.
Utopias in literature--Congresses.
Princeton subject headings:
Russian literature--20th century--History and criticism--Congresses.
Russian literature--21st century--History and criticism--Congresses.
Utopias in literature--Congresses.