Columbia subject headings:
Asylum, Right of--Europe.
Europe, Eastern--Emigration and immigration.
Refugees--Europe.
Refugees--Legal status, laws, etc.--Europe.
Harvard subject headings:
Immigrants--Europe, Central--Congresses.
Immigrants--Europe, Eastern--Congresses.
Non-governmental organizations--Europe, Central--Congresses.
Non-governmental organizations--Europe, Eastern--Congresses.
Refugees--Europe, Central--Congresses.
Refugees--Europe, Eastern--Congresses.
Princeton subject headings: