Columbia subject headings:
Harvard subject headings:
Art historians--Germany--19th century--Congresses.
Art historians--Germany--20th century--Congresses.
Art, European--Collectors and collecting--Congresses.
Art--Historiography--Congresses
Princeton subject headings:
Art criticism--Germany--History--19th century--Congresses.
Art criticism--Germany--History--20th century--Congresses.
Art, Italian--Appreciation--Germany--History--19th century--Congresses.
Art, Italian--Appreciation--Germany--History--20th century--Congresses.