Columbia subject headings:
Culture.
Totalitarianism.
Harvard subject headings:
Germany (East)--Ethnic relations.
Minorities--Germany (East)--Social conditions.
Minorities--Government policy--Germany (East)
Sorbs--Germany (East)
Princeton subject headings:
Germany (East)--Ethnic relations.
Minorities--Germany (East)--Social conditions.
Minorities--Government policy--Germany (East).
Sorbs--Germany (East).