Columbia subject headings:
Byzantine Empire--Civilization.
Byzantine Empire--Relations--Slavic countries.
Civilization, Slavic.
Slavic countries--Relations--Byzantine Empire.
Harvard subject headings:
Byzantine Empire--Relations--Slavic countries.
Civilization, Byzantine.
Civilization, Slavic--Byzantine influences.
Civilization, Slavic.
Litavrin, G. G.
Slavic countries--Relations--Byzantine Empire.
Princeton subject headings: