Columbia subject headings:
Harvard subject headings:
Austria--History--20th century--Congresses.
Discourse analysis--History--20th century--Congresses.
Europe, Central--History--20th century--Congresses.
Europe, Eastern--History--20th century--Congresses.
Legacies--Europe, Central--History--20th century--Congresses.
Legacies--Europe, Eastern--History--20th century--Congresses.
Princeton subject headings:
Europe, Central--Civilization.
Europe, Central--History--1989-
Europe, Central--History--20th century.
Habsburg, House of.