Marcello Rizzo, La cultura architettonica del periodo normanno e l’influenza bizantina in Sicilia, Thèse de doctorat soutenue en 2011, (dir. A. R. Carile, Université de Bologne)
The arguments of the thesis is the relationship between the Norman domination and the Greek-speaking people living in Sicily and Southern Italy. Particularly the ascendancy of the greek culture on the norman architecture and his role in the construction of the Norman Kingdom.
[Source : http://amsdottorato.unibo.it/4140/]