Columbia subject headings:
Droysen, Johann Gustav, 1808-1884--Criticism and interpretation--Congresses.
Droysen, Johann Gustav, 1808-1884--Influence--Congresses.
History--Philosophy--Congresses.
Harvard subject headings:
Droysen, Johann Gustav, 1808-1884--Congresses.
Historians--Germany--Congresses.
Historiography--Congresses
Rüsen, Jörn--Congresses.
Princeton subject headings:
Droysen, Johann Gustav, 1808-1884--Criticism and interpretation--Congresses.
Droysen, Johann Gustav, 1808-1884--Influence--Congresses.
History--Philosophy--Congresses.