Columbia subject headings:
Imperatorskai͡a akademīi͡a nauk (Russia)--History.
Intellectual cooperation.
Tartu Riiklik Ülikool--History.
Harvard subject headings:
Princeton subject headings:
Estonia--Relations--Russia.
Imperatorskai︠a︡ akademīi︠a︡ nauk (Russia)--History.
Russia--Relations--Estonia.