Columbia subject headings:
Harvard subject headings:
Balkan Peninsula--Church history--21st century--Congresses.
Europe, Central--Church history--21st century--Congresses.
Religion and sociology--Balkan Peninsula--History--21st century--Congresses.
Religion and sociology--Europe, Central--History--21st century--Congresses.
Religious awakening--Balkan Peninsula--History--21st century--Congresses.
Religious awakening--Europe, Central--History--21st century--Congresses.
Princeton subject headings:
Balkan Peninsula--Church history--21st century--Congresses.
Europe, Central--Church history--21st century--Congresses.
Religion and sociology--Balkan Peninsula--History--21st century--Congresses.
Religion and sociology--Europe, Central--History--21st century--Congresses.
Religious awakening--Balkan Peninsula--History--21st century--Congresses.
Religious awakening--Europe, Central--History--21st century--Congresses.