Columbia subject headings:
Keyserling, Eduard von, 1855-1918--Criticism and interpretation.
Poetics.
Harvard subject headings:
Keyserling, Eduard von, 1855-1918--Criticism and interpretation--Congresses.
Princeton subject headings:
Impressionism in literature--Congresses.
Keyserling, Eduard von, 1855-1918--Criticism and interpretation--Congresses.
Nobility in literature--Congresses.
Poetics--Congresses.