(1991). Catalogue of Byzantine Seals at Dumbarton Oaks and in the Fogg Museum of Art, Volume 1: Italy, North of the Balkans, North of the Black Sea. Washington
Eleni Sakellariou, Southern Italy in the Late Middle Ages: Demographic, Institutional and Economic Change in the Kingdomof Naples, c.1440–c.1530 (Brill
Byzantium in the Seventh Century: The Transformation of a Culture. Cambridge, United Kingdom: Cambridge University Press. ISBN 978-0-521-31917-1.CS1-одржување:
("The United States is the sole world's superpower. France, Italy, Germany and the United Kingdom are great powers") Sterio, Milena (2013). The right to self-determination