Columbia subject headings:
Emigration and immigration.
Germany--Emigration and immigration.
Refugees--Germany--Social conditions.
Refugees--Government policy--Germany.
Refugees--Government policy.
Refugees.
Social integration.
Harvard subject headings:
Boundaries
Emigration and immigration
Germany--Emigration and immigration
Refugees
Refugees--Germany--Social conditions.
Refugees--Government policy
Refugees--Government policy--Germany.
Social integration
Princeton subject headings: