Columbia subject headings:
Architecture--France--History--17th century--Congresses.
Desargues, Gérard, 1591-1661--Congresses.
Geometry--France--History--17th century--Congresses.
Perspective--History--17th century--Congresses.
Harvard subject headings:
Architecture, Modern--17th century--France--Congresses.
Architecture--France--History--17th century--Congresses.
Desargues, Gérard, 1591-1661--Congresses.
Geometry--France--History--17th century--Congresses.
Perspective--History--17th century--Congresses.
Princeton subject headings:
Architecture--France--History--Congresses.
Desargues, Gérard, 1591-1661--Congresses.
Desargues, Gérard, 1591-1661--Influence--Congresses.
Geometry, Projective--History--Congresses.
Mathematics--France--History--Congresses.