R. Camagni's book is a major one in the field of urban economics. It combines the rigour inherited from the American masters with the principles of spatial economics created in Europe. R. Camagni, P.H. Derycke and A. Sallez have tested the theories described in the book by simulating the behaviour of urban networks in France in the framework of the DATAR.
SALLEZ, A. (1996). Postface. In: Principes et modèles de l'économie urbaine. 1st ed. Economica, pp. 357-358.