Columbia subject headings:
Germany--Emigration and immigration.
Germany--Ethnic relations.
Jewish refugees--Europe--History--20th century.
Jews--Germany--History--1933-1945.
Harvard subject headings:
Germany--Emigration and immigration--History--1933-1945.
Germany--Emigration and immigration.
Germany--Ethnic relations.
Jewish refugees--Europe--History--20th century.
Jews--Germany--History--1933-1945.
Political refugees--Germany--History--20th century
Princeton subject headings:
Germany--Emigration and immigration--History--1933-1945.
Germany--History--1933-1945.
Journalists--Germany--Biography.
Lawyers--Germany--Biography.
Olden, Ika, 1908-1940.
Olden, Rudolf, 1885-1940.