Remarks
In addition, the following cooperations existed: Université de Montpellier, France: French translations of selected parts of the text, contributed by Prof. Dr. Michèle-Caroline Heck and Anaïs Carvalho.
Bibliotheca Hertziana, Max-Planck-Institut für Kunstgeschichte, Rome, Italy: French translations of selected parts of the text, contributed by Dr. Cecilia Mazzetti di Pietralata.
National Gallery of Art, Center for Advanced Study in the Visual Arts, Washington D.C.
Scuola Normale Superiore di Pisa, Italy.
Delft University of Technology, Netherlands.