Columbia subject headings:
Burri, Alberto, 1915-1995--Congresses.
Burri, Alberto, 1915-1995--Exhibitions.
Harvard subject headings:
Art, Modern--21st century--Congresses.
Art, Modern--21st century--Exhibitions
Princeton subject headings:
Burri, Alberto, 1915-1995--Congresses.
Burri, Alberto, 1915-1995--Exhibitions.