| J.H. Whitfield |
L'Acerba di Ceceo d'Ascoli: saggio d'interpretacione, by H. Pflaum |
|
14/, p. 71 |
| F.S. Taylor |
The Sphere of Sacrobosco and Its Commentators, by Lynn Thorndike |
|
20/, p. 86 |
| R.M. Dawkins |
Virgil the Necromancer, Studies in Virgilian Legends. Harvard Studies in Comparative Literature Volume X, by John Webster Spargo |
|
4/2, p. 113 |