Columbia subject headings:
Harvard subject headings:
Collective memory--Europe--Congresses.
Democracy--Europe--History--Congresses.
Dictatorship--Europe--History--Congresses.
Europe--History--20th century--Congresses.
Europe--Politics and government--20th century--Congresses.
Princeton subject headings:
Collective memory--European Union countries--Congresses.
Europe--History--20th century--Congresses.