Columbia subject headings:
Europe--Languages--Congresses.
Language policy--Europe--Congresses.
Linguistic minorities--Europe--Congresses.
Minorities--Europe--Congresses.
Nationalism--Europe--History--Congresses.
Sociolinguistics--Europe--Congresses.
Harvard subject headings:
Europe--Languages--Congresses.
Language policy--Europe--Congresses.
Linguistic minorities--Europe--Congresses.
Minorities--Europe--Congresses
Nationalism--Europe--History--Congresses.
Sociolinguistics--Europe--Congresses.
Princeton subject headings:
Europe--Languages--Congresses.
Minorities--Europe--Congresses.