Corrao, Pietro. «International Medieval Institute, University of Leeds, International Medieval Bibliography, 6 (1967-1998), Thurnout, Brepols Publishers, 2000, CD-RO»M. Reti Medievali Rivista 2, no. 2 (dicembre 15, 2001): Art. #7. Consultato marzo 3, 2024. http://www.serena.unina.it/index.php/rm/article/view/urn%3Anbn%3Ait%3Aunina-3262.