Les sources astronomiques : textes, tables, instruments. A-5., D* et B-1., D, 5* - Poulle, Emmanuel, <1928-2011>. (OLS)http://semarc/name/69824 (Brepols,, 1981)
Keywords: Strumenti astronomici - Storia - Medioevo. (OLS)http://semarc/subject/35989; Astronomia - Storia - Fonti - Medioevo. (OLS)http://semarc/subject/35990