Columbia subject headings:
Harvard subject headings:
Germany--Ethnic relations.
Romani Genocide, 1939-1945
World War, 1939-1945--Atrocities.
Princeton subject headings:
Lagrene, Ilona.
Lagrene, Reinhold.
Romani Genocide, 1939-1945.
Romanies--Germany--History--20th century.
World War, 1939-1945--Atrocities.