Columbia subject headings:
Historiography--Germany--Bonn--History.
History--Study and teaching--Germany--Bonn--History.
Harvard subject headings:
College teachers--Germany--Bonn--Biography.
Historiography--Germany--Bonn--History.
History--Study and teaching--Germany--Bonn--History.
Universities and colleges--Germany--Bonn--Departments--History--19th century.
Universities and colleges--Germany--Bonn--Departments--History--20th century.
Universität Bonn. Historisches Seminar--History.
Princeton subject headings:
College teachers--Germany--Bonn--Biography.
Historiography--Germany--Bonn--History.
History--Study and teaching--Germany--Bonn--History.
Universität Bonn. Historisches Seminar--History.
Universities and colleges--Germany--Bonn--Departments--History--19th century.
Universities and colleges--Germany--Bonn--Departments--History--20th century.