Columbia subject headings:
Arts and society--History--20th century.
Arts, Modern--20th century.
Sturm--Influence.
Harvard subject headings:
Arts and society--History--20th century--Congresses.
Arts, Modern--20th century--Congresses
Influence (Literary, artistic, etc.)--Congresses.
Influence (Psychology)--Congresses.
Sturm--Influence--Congresses.
Princeton subject headings:
Arts and society--History--20th century.
Arts, Modern--20th century.
Sturm--Influence.