Columbia subject headings:
Authors, German--21st century--Exhibitions.
Widmer, Urs, 1938-2014--Criticism and interpretation--Exhibitions.
Harvard subject headings:
Authors, German--21st century--Exhibitions.
Widmer, Urs, 1938---Criticism and interpretation--Exhibitions.
Widmer, Urs, 1938-2014--Criticism and interpretation--Exhibitions.
Princeton subject headings:
Widmer, Urs, 1938-2014--Exhibitions.