Columbia subject headings:
Harvard subject headings:
Adorno, Theodor W., 1903-1969--Criticism and interpretation.
Benn, Gottfried, 1886-1956--Criticism and interpretation.
Celan, Paul--Criticism and interpretation.
German poetry--20th century--History and criticism
Poetics--History
Poetry, Modern--20th century--History and criticism
Princeton subject headings:
Adorno, Theodor W., 1903-1969.
Benn, Gottfried, 1886-1956--Criticism and interpretation.
Celan, Paul--Criticism and interpretation.
Lyric poetry--20th century--History and criticism.
Lyric poetry--History and criticism--Theory, etc.