Columbia subject headings:
Jews--Germany--Lower Saxony--History--Congresses.
Lower Saxony (Germany)--Ethnic relations--Congresses.
Harvard subject headings:
Jews--Germany--Lower Saxony--History--Congresses.
Lower Saxony (Germany)--Ethnic relations--Congresses.
Princeton subject headings:
Jews--Germany--Lower Saxony--History--Congresses.
Lower Saxony (Germany)--Ethnic relations--Congresses.