Columbia subject headings:
Harvard subject headings:
Willmann, Michael Lukas Leopold, 1630-1706--Exhibitions.
Willmann, Michael Lukas Leopold, 1630-1706--Friends and associates--Exhibitions.
Princeton subject headings:
Drawing, German--17th century--Exhibitions.
Drawing, German--18th century--Exhibitions.
Willmann, Michael Lukas Leopold, 1630-1706--Exhibitions.