Columbia subject headings:
Harvard subject headings:
Germany--Research--History--19th century--Congresses.
Greece--Civilization--German influences--Congresses.
Greece--Civilization--Study and teaching--Germany--History--19th century--Congresses.
Learning and scholarship--Greece--German influences--Congresses.
Princeton subject headings:
Germany--Research--History--19th century--Congresses.
Greece--Civilization--German influences--Congresses.
Greece--Civilization--Study and teaching--Germany--History--19th century--Congresses.
Learning and scholarship--Greece--German influences--Congresses.