Vorontsov, Sergey. «Amicitia and Caritas in the 7th Century: Isidore of Seville and His Sources». Ciceroniana On Line 1, no. 2 (novembre 20, 2017): 395-412. Consultato luglio 18, 2024. https://ojs.unito.it/index.php/COL/article/view/2507.