Columbia subject headings:
Art, German--20th century--Exhibitions.
Immendorff, Jörg--Exhibitions.
Lüpertz, Markus--Exhibitions.
Penck, A. R., 1939-2017--Exhibitions.
Harvard subject headings:
Art, German--20th century--Exhibitions.
Immendorff, Jörg--Exhibitions.
Lüpertz, Markus--Exhibitions.
Penck, A. R., 1939-2017.--Exhibitions.
Princeton subject headings:
Art, German--20th century--Exhibitions.
Immendorff, Jörg--Exhibitions.
Lüpertz, Markus--Exhibitions.
Penck, A. R., 1939-2017--Exhibitions.