The status of models in ancient and medieval astronomy / by Bernard R. Goldstein.
Note:
A p. 145-147: Passi scelti in trad. inglese dai mss. Paris, Bibliothèque Nationale, hebr. 724, 725 e Napoli, Biblioteca Nazionale, hebr. III F.9. di Levi ben Gerson
Abstract:
The use of geometric models to account for planetary motions
Centaurus Vol. 24 (1980), p. 132-147