Columbia subject headings:
Harvard subject headings:
Germanic languages--Etymology--Names--Congresses.
Names, Geographical--Dutch--Congresses.
Names, Geographical--France--Congresses.
Names, Geographical--Germany--Congresses.
Names, Geographical--Germany--Saarland--Congresses.
Romance languages--Etymology--Names--Congresses.
Saarland (Germany)--History--Congresses.
Toponymy--Congresses.
Princeton subject headings:
Names, Geographical--Europe, Western--Congresses.
Names, Geographical--German--Congresses.
Names, Geographical--Latin--Congresses.