Columbia subject headings:
Art--Private collections--Switzerland--Exhibitions.
Bürgi, Hanni, 1880-1938--Art collections--Exhibitions.
Bürgi, Rolf, 1906-1967--Art collections--Exhibitions.
Klee, Paul, 1879-1940--Exhibitions.
Harvard subject headings:
Art--Private collections--Switzerland--Bern--Exhibitions.
Bürgi family--Art collections--Exhibitions.
Bürgi, Hanni, 1880-1938--Art collections--Exhibitions.
Bürgi, Rolf, 1906-1967--Art collections--Exhibitions.
Klee, Paul, 1879-1940--Exhibitions.
Princeton subject headings:
Bürgi family--Art collections--Exhibitions.
Klee, Paul, 1879-1940--Exhibitions.