Columbia subject headings:
Duisburg (Germany)--Ethnic relations.
Holocaust, Jewish (1939-1945)--Germany--Duisburg.
Jews--Germany--Duisburg--History.
Harvard subject headings:
Duisburg (Germany)--Ethnic relations.
Holocaust, Jewish (1939-1945)--Germany--Duisburg.
Jews--Germany--Duisburg--History.
Princeton subject headings:
Duisburg (Germany)--History.
Jews--Germany (West)--Duisburg--History.