Columbia subject headings:
Germany--Historiography--Congresses.
Harvard subject headings:
Germany--Historiography--Congresses.
Germany--History--Study and teaching--France--Congresses.
Historiography--Germany--History--Congresses.
Princeton subject headings:
Germany--Historiography--Congresses.
Germany--History--Study and teaching--France--Congresses.
Historiography--Germany--History--Congresses.