Columbia subject headings:
Harvard subject headings:
Romanies in art--Congresses.
Romanies--Crimes against--Europe, Eastern--History--20th century--Congresses.
Romanies--Nazi persecution--Europe, Eastern--Congresses.
World War, 1939-1945--Atrocities--Congresses.
Princeton subject headings:
Romanies--Europe, Eastern--History--20th century--Congresses.
Romanies--Nazi persecution--Europe, Eastern--Congresses.
World War, 1939-1945--Atrocities--Europe, Eastern--Congresses.