Columbia subject headings:
Schiller, Friedrich, 1759-1805--Criticism and interpretation--Congresses.
Harvard subject headings:
Schiller, Friedrich, 1759-1805--Criticism and interpretation--Congresses.
Princeton subject headings:
Schiller, Friedrich, 1759-1805--Appreciation--Congresses.
Schiller, Friedrich, 1759-1805--Criticism and interpretation--Congresses.