Columbia subject headings:
Ethnicity--Europe, Eastern.
Europe, Eastern--Ethnic relations.
Europe, Eastern--Historiography.
Minorities--Europe, Eastern.
Harvard subject headings:
Europe, Central--Ethnic relations--History.
Europe, Eastern--Ethnic relations--History.
Minorities--Europe, Central--Historiography.
Minorities--Europe, Eastern--Historiography.
Princeton subject headings:
Ethnicity--Europe, Eastern.
Europe, Eastern--Ethnic relations.
Europe, Eastern--Historiography.
Minorities--Europe, Eastern.