Columbia subject headings:
Hungary--History--Revolution, 1956--Congresses.
Hungary--History--Revolution, 1956--Refugees--Congresses.
Political refugees--Hungary--History--20th century--Congresses.
Szeged (Hungary)--History--20th century--Congresses.
Harvard subject headings:
Hungary--History--1945-1989
Hungary--History--Revolution, 1956
Princeton subject headings: