Columbia subject headings:
Education, Higher--Balkan Peninsula.
Education, Higher--Europe, Central.
Education, Higher--Research--Balkan Peninsula.
Education, Higher--Research--Europe, Central.
Harvard subject headings:
Education, Higher--Balkan Peninsula.
Education, Higher--Europe, Central.
Education, Higher--Research--Balkan Peninsula.
Education, Higher--Research--Europe, Central.
Princeton subject headings:
Education, Higher--Balkan Peninsula.
Education, Higher--Europe, Central.
Education, Higher--Research--Balkan Peninsula.
Education, Higher--Research--Europe, Central.