Columbia subject headings:
Authors, Russian--20th century.
Dissenters--Soviet Union.
Russian literature--20th century--History and criticism.
Harvard subject headings:
Authors, Russian--20th century.
Dissenters--Soviet Union
Russian literature--20th century--History and criticism
Princeton subject headings:
Authors, Russian--20th century.
Dissenters--Soviet Union.
Russian literature--20th century--History and criticism.