Columbia subject headings:
Secession--Congresses.
Separatist movements--Congresses.
Sovereignty--Congresses.
Harvard subject headings:
Europe--History--Autonomy and independence movements--Congresses.
Secession--Europe--Congresses.
Self-determination, National--Europe--Congresses.
Princeton subject headings:
Secession--Congresses.
Separatist movements--Congresses.
Sovereignty--Congresses.