Columbia subject headings:
Bienek, Horst, 1930-1990--Bibliography.
Bienek, Horst, 1930-1990--Criticism and interpretation.
Harvard subject headings:
Bienek, Horst, 1930---Criticism and interpretation.
Bienek, Horst, 1930-1990--Criticism and interpretation.
Princeton subject headings:
Bienek, Horst, 1930-1990--Criticism and interpretation.