Columbia subject headings:
Architecture--Study and teaching--Switzerland--Zurich.
Eidgenössische Technische Hochschule Zürich.
Harvard subject headings:
Architects--Switzerland.
Architectural models--Switzerland.
Architecture--Study and teaching--Switzerland--Zurich.
Architecture--Switzerland--20th century--Designs and plans.
Eidgenössische Technische Hochschule Zürich
Kollhoff, Hans.
Princeton subject headings: