Columbia subject headings:
Harvard subject headings:
Jena (Germany)--Civilization--18th century--Congresses.
Jena (Germany)--Civilization--19th century--Congresses.
Weimar (Thuringia, Germany)--Civilization--18th century--Congresses.
Weimar (Thuringia, Germany)--Civilization--19th century--Congresses.
Weimar (Thuringia, Germany)--Relations--Congresses.
Princeton subject headings:
Jena (Germany)--Civilization--18th century--Congresses.
Jena (Germany)--Civilization--19th century--Congresses.
Weimar (Thuringia, Germany)--Civilization--18th century--Congresses.
Weimar (Thuringia, Germany)--Civilization--19th century--Congresses.
Weimar (Thuringia, Germany)--Relations--Congresses.