Columbia subject headings:
Art, European--20th century--Exhibitions.
Art--Germany--Wuppertal--Exhibitions.
Art--Private collections--Germany--Wuppertal--Exhibitions.
Holze, Hildegard, 1926---Art collections--Exhibitions.
Holze, Jürgen W., 1929---Art collections--Exhibitions.
Von der Heydt-Museum--Exhibitions.
Harvard subject headings:
Art, European--20th century--Exhibitions
Art--Germany--Wuppertal--Exhibitions.
Art--Private collections--Germany--Wuppertal--Exhibitions.
Holze, Hildegard, 1926---Art collections--Exhibitions.
Holze, Jürgen W., 1929---Art collections--Exhibitions.
Von der Heydt-Museum--Exhibitions.
Princeton subject headings:
Art, European--20th century--Exhibitions.
Art--Germany--Wuppertal--Exhibitions.
Art--Private collections--Germany--Wuppertal--Exhibitions.
Holze, Hildegard, 1926---Art collections--Exhibitions.
Holze, Jürgen W., 1929---Art collections--Exhibitions.
Von der Heydt-Museum--Exhibitions.