Columbia subject headings:
Art--Private collections--Netherlands--Exhibitions.
Graaff, Jacob de, 1873-1947--Art collections--Exhibitions.
Graaff-Bachiene, Louise de, 1870-1963--Art collections--Exhibitions.
Stichting Hannema-De Stuers Fundatie--Exhibitions.
Harvard subject headings:
Art--Private collections--Netherlands--Exhibitions.
Graaff, Jacob de, 1873-1947--Art collections--Exhibitions.
Graaff-Bachiene, Louise de, 1870-1963--Art collections--Exhibitions.
Stichting Hannema-De Stuers Fundatie--Exhibitions.
Princeton subject headings:
Art, Belgian--20th century--Exhibitions.
Art, Belgian--Exhibitions.
Art, European--Exhibitions.
Graaff, Jacob de, 1873-1947--Art collections--Exhibitions.
Graaff-Bachiene, Louise de, 1870-1963--Art collections--Exhibitions.
Stichting Hannema-De Stuers Fundatie--Exhibitions.