Columbia subject headings:
Balkan Peninsula--Civilization.
Balkan Peninsula--Court and courtiers.
Literature and society--Balkan Peninsula.
Harvard subject headings:
Balkan Peninsula--Civilization--Congresses.
Balkan Peninsula--Court and courtiers--Congresses.
Princeton subject headings:
Balkan Peninsula--Civilization--Congresses.
Balkan Peninsula--Court and courtiers--Congresses.
Literature and society--Balkan Peninsula--Congresses.