Columbia subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Müller, Heiner, 1929-1995--Criticism and interpretation.
Theater--Germany--20th century.
Harvard subject headings:
Brecht, Bertolt, 1898-1956--Influence.
German drama--20th century--History and criticism.
Müller, Heiner, 1929-1995--Criticism and interpretation.
Princeton subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Müller, Heiner, 1929-1995--Criticism and interpretation.
Theater--Germany--20th century.