Columbia subject headings:
Harvard subject headings:
Censorship--Germany (East)--Congresses.
Literature and state--Germany (East)--Congresses.
Prohibited books--Germany (East)--Congresses.
Publishers and publishing--Germany (East)--Congresses.
Readership surveys--Germany (East)--Congresses.
Princeton subject headings:
Censorship--Germany (East).
German literature--20th century--History and criticism.
Literature and state--Germany (East)
Prohibited books--Germany (East)--History--20th century.