Columbia subject headings:
Brandt, Willy, 1913-1992--Correspondence.
Grass, Günter, 1927-2015--Correspondence.
Harvard subject headings:
Authors, German--20th century--Correspondence
Brandt, Willy, 1913-1992--Correspondence.
Grass, Günter, 1927-2015--Correspondence.
Politicians--Germany--Correspondence.
Statesmen--Germany--Correspondence.
Princeton subject headings:
Authors, German--20th century--Correspondence.
Brandt, Willy, 1913-1992--Correspondence.
Grass, Günter, 1927-2015--Correspondence.
Heads of state--Germany (West)--Correspondence.