CORFU, Alin Constantin. “A SHORT MODERN HISTORY OF STUDYING SACROBOSCO’S ‟DE SPHAERA””. Studia Universitatis Babeș-Bolyai Philosophia 65, no. Special Issue (April 20, 2020): 23 – 33. Accessed February 5, 2025. https://studia.reviste.ubbcluj.ro/index.php/subbphilosophia/article/view/2789.