Columbia subject headings:
Slavs, Southern--History.
Harvard subject headings:
Balkan Peninsula--Relations--Russia.
Balkan Peninsula--Relations--Soviet Union.
Eastern question (Balkan)
Panslavism.
Press--Russia--History--19th century.
Press--Soviet Union--History--19th century.
Public opinion--Russia--History--19th century.
Public opinion--Soviet Union--History--19th century.
Russia--Relations--Balkan Peninsula.
Slavs, Southern--History
Soviet Union--Relations--Balkan Peninsula.
Princeton subject headings:
Balkan Peninsula--Relations--Russia.
Eastern question (Balkan)
Panslavism.
Press--Russia--History--19th century.
Public opinion--Russia--History--19th century.
Russia--Relations--Balkan Peninsula.
Slavs, Southern--History.