Columbia subject headings:
Harvard subject headings:
Germany--Emigration and immigration--Congresses.
Germany--Emigration and immigration--Government policy--Congresses.
Immigrants--Germany--Congresses.
Refugees--Education--Germany--Congresses.
Refugees--Germany--Congresses.
Refugees--Government policy--Germany--Congresses.
Social integration--Congresses.
Xenophobia--Germany--Congresses.
Princeton subject headings:
Freedom of religion--Germany--Congresses.
Germany--Ethnic relations--Congresses.
Immigrants--Germany--Social conditions--Congresses.
Social integration--Germany--Congresses.