Columbia subject headings:
Harvard subject headings:
Authors, German--20th century.
Authors, German--Germany (East)
German literature--20th century--History and criticism
German literature--Germany (East)--History and criticism
Princeton subject headings:
Authors, German--20th century.
Authors, German--Germany (East).
German literature--20th century--History and criticism.
German literature--Germany (East)--History and criticism.