Columbia subject headings:
Harvard subject headings:
Auschwitz (Concentration camp)
Collective memory--Europe.
Holocaust memorials
National socialism--Europe.
Romani Genocide, 1939-1945
Romanies--Europe--History
World War, 1939-1945--Atrocities
Princeton subject headings:
Romani Genocide, 1939-1945.
Romanies--Crimes against--Europe--20th century.