アブラハム・イブン・エズラ
"Sefer ha-Eḥad," on the peculiarities of the numbers 1-9.
"Sefer ha-Mispar" or "Yesod Mispar," arithmetic.
"Luhot," astronomical tables.
"Sefer ha-'Ibbur," on the calendar (ed. Halberstam, 1874).
"Keli ha-Neḥoshet," on the astrolabe (ed. Edelmann, 1845).
"Shalosh She'elot," answer to three chronological questions of David Narboni.
Translation of two works by the astrologer Mashallah: "She'elot" and "Ḳadrut" (モーリッツ・シュタインシュナイダー Moritz Steinschneider, "Hebr. Uebers." pp. 600-603).