Columbia subject headings:
Harvard subject headings:
Archaeology and history--Europe--Congresses.
Archaeology, Medieval--Europe--Congresses.
Archaeology, Medieval--Switzerland--Congresses.
Cities and towns, Medieval--Europe--Congresses.
Cities and towns, Medieval--Switzerland--Congresses.
Cities and towns--Europe--History--Congresses
Princeton subject headings:
Archaeology and history--Europe--Congresses.
Archaeology, Medieval--Europe--Congresses.
Archaeology, Medieval--Switzerland--Congresses.
Cities and towns, Medieval--Europe--Congresses.
Cities and towns, Medieval--Switzerland--Congresses.
Cities and towns--Europe--History--Congresses.