Columbia subject headings:
Cults--Europe--Congresses.
Cults--Europe.
Europe--Religion--Congresses.
Europe--Religion.
Sects--Europe--Congresses.
Sects--Europe.
Harvard subject headings:
Cults--Europe.
Europe--Religion.
Sects--Europe.
Princeton subject headings:
Cults--Europe.
Europe--Religion.
Sects--Europe.