Wilkins, David G.; Wilkins, Rebecca L. (1996). The Search for a Patron in the Middle Ages and the Renaissance. Lewiston: E. Mellen Press.
ISBN0-7734-8867-7.
OCLC33440947.
External links
Tolfo, Maria Grazia; Colussi, Paolo (January 30, 2006).
"::: Storia di Milano ::: Dizionario degli artisti visconte" [History of Milan::: Dictionary of Visconti artists]. Storia di Milano (in Italian). Milano: Storiadimilano. Retrieved July 29, 2010.