Per i canti XXXI-XXXII guardare dal minuto 2:51 https://www.youtube.com/watch?v=ryddRW-eCp4&t=122s per il canto XXXIII https://www.raiplay.it/video/2020/03/testimoni-del-tempo—lezioni-sulla-divina-commedia-paradiso—canto-xxxiii-515144eb-d0da-4861-b420-b3af4b98d7bd.html https://www.youtube.com/watch?v=KJxCsYQGHfM