Crupi, Gianfranco. “Volvelles of Knowledge. Origin and Development of an Instrument of Scientific Imagination (13th-17th Centuries)”. JLIS.it 10, no. 2 (May 15, 2019): 1–27. Accessed May 17, 2024. https://jlis.fupress.net/index.php/jlis/article/view/73.