Columbia subject headings:
Architectural design--Congresses.
Architecture--Congresses.
Architecture--Mathematics--Congresses.
Geometry in architecture--Congresses.
Mathematics--Congresses.
Harvard subject headings:
Architectural design--Congresses
Architecture--Mathematics--Congresses.
Princeton subject headings:
Architectural design--Congresses.
Architecture--Mathematics--Congresses.
Geometry in architecture--Congresses.