Columbia subject headings:
Becker, Jurek, 1937-1997--Congresses.
Harvard subject headings:
Becker, Jurek, 1937-1997--Congresses.
Princeton subject headings:
Becker, Jurek, 1937-1997--Criticism and interpretation--Congresses.
Becker, Jurek, 1937-1997--Influence--Congresses.