Columbia subject headings:
Christianity and culture--Slavic countries--Congresses.
Orthodox Eastern Church--Slavic countries--History--Congresses.
Slavic countries--Civilization--Congresses.
Harvard subject headings:
Christianity and culture--Slavic countries--Congresses.
Slavic countries--Civilization--Congresses.
Princeton subject headings:
Christianity and culture--Slavic countries--Congresses.
Orthodox Eastern Church--Slavic countries--History--Congresses.
Slavic countries--Civilization--Congresses.