Columbia subject headings:
Grass, Günter, 1927-2015--Criticism and interpretation--Congresses.
Harvard subject headings:
Grass, Günter, 1927-2015--Criticism and interpretation--Congresses.
Grass, Günter, 1927-2015--Poetic works--Congresses.
Princeton subject headings:
Grass, Günter, 1927-2015--Criticism and interpretation--Congresses.