Columbia subject headings:
Painting, Italian--Conservation and restoration--Congresses.
Harvard subject headings:
Artists' materials--Italy--History--Congresses.
Colors--Analysis--Congresses.
Painting, Italian--Conservation and restoration--Congresses.
Painting, Italian--Technique--History--Congresses.
Pigments--Analysis--Congresses.
Tempera painting--Conservation and restoration--Congresses.
Princeton subject headings:
Painting, Italian--Conservation and restoration--Congresses.
Painting, Medieval--Conservation and restoration--Italy--Congresses.
Painting, Renaissance--Conservation and restoration--Italy--Congresses.