Columbia subject headings:
Benning, Achim, 1935-
Theater--Austria--Vienna.
Theater--Switzerland--Zurich.
Harvard subject headings:
Artists and theater.
Benning, Achim, 1935-
Drama--History and criticism
Theater--Philosophy.
Theater.
Theatrical producers and directors
Princeton subject headings:
Benning, Achim, 1935-
Theater--Austria--Vienna.
Theater--Switzerland--Zurich.