Columbia subject headings:
May, Matthias, 1884-1923--Exhibitions.
Harvard subject headings:
May, Matthias, 1884-1923--Exhibitions.
May, Matthias, 1884-1923--Influence--Exhibitions.
Princeton subject headings:
May, Matthias, 1884-1923--Exhibitions.
Painting, Austrian--20th century--Exhibitions.
Painting, German--20th century--Exhibitions.