Columbia subject headings:
Brecht, Bertolt, 1898-1956--Friends and associates.
Fleisser, Marieluise, 1901-1974--Friends and associates.
Harvard subject headings:
Authorship--Collaboration
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Fleisser, Marieluise, 1901-1974--Criticism and interpretation.
Princeton subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Fleisser, Marieluise, 1901-1974--Criticism and interpretation.