Columbia subject headings:
Architecture, Modern--20th century--Philosophy.
Architecture, Modern--21st century--Philosophy.
Art, Modern--20th century--Philosophy.
Art, Modern--21st century--Philosophy.
Schwitters, Kurt, 1887-1948--Criticism and interpretation.
Schwitters, Kurt, 1887-1948. Merzbau.
Harvard subject headings:
Assemblage (Art)--Germany.
Expressionism (Art)--Germany
Schwitters, Kurt, 1887-1948--Criticism and interpretation--Congresses.
Schwitters, Kurt, 1887-1948. Merzbau.
Princeton subject headings:
Architecture, Modern--20th century--Philosophy.
Architecture, Modern--21st century--Philosophy.
Art, Modern--20th century--Philosophy.
Art, Modern--21st century--Philosophy.
Schwitters, Kurt, 1887-1948--Criticism and interpretation.
Schwitters, Kurt, 1887-1948. Merzbau.