Columbia subject headings:
Harvard subject headings:
Germany--Emigration and immigration.
Jews--Netherlands.
Netherlands--Emigration and immigration.
Political refugees--Germany--History--20th century
Princeton subject headings:
Exiles--Germany--Congresses.
Exiles--Netherlands--Congresses.
Germans--Netherlands--Congresses.
Germany--Intellectual life--Congresses.
Netherlands--History--Wilhelmina, 1898-1948--Congresses.
Netherlands--Intellectual life--Congresses.