Columbia subject headings:
Europe--Emigration and immigration--Congresses.
Immigrants--Cultural assimilation--Europe--Congresses.
Minorities--Europe--Social conditions--Congresses.
Minorities--Political activity--Europe--Congresses.
Harvard subject headings:
Europe--Emigration and immigration--Congresses.
European Union countries--Economic integration--Congresses.
European Union countries--Economic policy--Congresses.
Immigrants--Cultural assimilation--Europe--Congresses.
Immigrants--European Union countries--Congresses.
Minorities--Europe--Social conditions--Congresses.
Minorities--European Union countries--Congresses.
Minorities--Political activity--Europe--Congresses.
Princeton subject headings:
Europe--Emigration and immigration--Congresses.
Immigrants--Cultural assimilation--Europe--Congresses.
Minorities--Europe--Social conditions--Congresses.
Minorities--Political activity--Europe--Congresses.