Columbia subject headings:
Harvard subject headings:
Antisemitism--History--Congresses.
Conspiracy theories--History--Congresses.
Jews--Europe--History--Congresses.
Jews--Persecutions--Congresses.
Secrecy--History--Congresses.
Secrecy--Religious aspects--Judaism--Congresses.
Princeton subject headings:
Antisemitism--History--Congresses.
Conspiracy theories--History--Congresses.
Jews--Europe--History--Congresses.
Jews--Persecutions--Congresses.
Secrecy--History--Congresses.
Secrecy--Religious aspects--Judaism--Congresses.