Columbia subject headings:
Art, Modern--20th century--Congresses.
Art--Philosophy--Congresses.
Harvard subject headings:
Aesthetics--Congresses
Art appreciation--History--20th century--Congresses.
Art--Philosophy--Congresses
Love--Congresses
Princeton subject headings:
Aesthetics--Congresses.
Art appreciation--Italy--Venice--History--20th century--Congresses.
Art--Philosophy--Congresses.
Love--Congresses.