Columbia subject headings:
Rühmkorf, Peter--Criticism and interpretation--Congresses.
Rühmkorf, Peter--Poetic works--Congresses.
Harvard subject headings:
Rühmkorf, Peter--Criticism and interpretation--Congresses.
Rühmkorf, Peter--Poetic works--Congresses.
Princeton subject headings:
Lyric poetry.
Rühmkorf, Peter--Criticism and interpretation.