Columbia subject headings:
Archaeology, Medieval--Congresses.
Cities and towns, Medieval--Europe--Congresses.
Excavations (Archaeology)--Europe--Congresses.
Harvard subject headings:
Archaeology, Medieval--Congresses.
Cities and towns, Medieval--History--Congresses.
Social history--Medieval, 500-1500--Congresses
Princeton subject headings:
Archaeology, Medieval--Congresses.
Cities and towns, Medieval--Europe--Congresses.
Excavations (Archaeology)--Europe--Congresses.