Nishimura, Yoshiya. «Was a Lease Effective As a Weapon of Lordship? The Use of Documents in the Principality of Salerno (10th-11th Century)». Reti Medievali Rivista 18, no. 2 (dicembre 5, 2017): 275–294. Consultato aprile 30, 2025. https://serena.atcult.it/index.php/rm/article/view/5336.