Loffredo, Mario. «The Ferraris Chronicle. Popes, Emperors, and Deeds in Apulia, Translation and Notes by Jacqueline Alio, Trinacria Editions, New York, 2017, Pp. 318. ISBN 97819436391»8. Schola Salernitana - Annali 24 (dicembre 28, 2019): 121-125. Consultato maggio 1, 2024. http://www.serena.unina.it/index.php/schola/article/view/6266.