Columbia subject headings:
Schaefer, Herbert--Art collections--Catalogs.
Harvard subject headings:
Genre painting, European--Exhibitions.
Landscape painting, European--Exhibitions.
Schaefer, Herbert--Art collections--Exhibitions.
Schaefer, Monika--Art collections--Exhibitions.
Princeton subject headings:
Painting, European--Exhibitions.
Schaefer, Herbert--Art collections--Exhibitions.
Schaefer, Monika--Art collections--Exhibitions.