Columbia subject headings:
Drawing, German--Exhibitions.
Hamburger Kunsthalle. Kupferstichkabinett--Exhibitions.
Harvard subject headings:
Drawing, German--Exhibitions.
Hamburger Kunsthalle. Kupferstichkabinett--Exhibitions.
Princeton subject headings:
Drawing, German--Exhibitions.
Hamburger Kunsthalle. Kupferstichkabinett--Exhibitions.