Das Buch der Ringsteine al-Fārābi's (gest. 950) : mit dem Kommentare des Amīr Ismāʻīl al-Ḥusainī al-Fārānī (um 1485) /
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Appeared in part as editor and translators̀ inaugural dissertation, Bonn, 1904.
The Arabic text of the Ringsteine was published in Zeitschrift für Assyriologie, volume 18, pages 257-300 ; the commentary of Emir Ismāʼil in volume 20, pages 16-48 ; "die philosophischen Ansichten" in volume 28, pages 113-146.
Title from ser. t.p. :
xxviii, 510 pages : illustrations ; 24 cm.
Al-Risālah al-jāmiʻah al-mansūbah lil-ḥakīm al-Majrīṭī /
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Attributed also to Ikhwān al-Ṣafāʼ. :
2 volumes ; 26 cm. :
Includes bibliographical references and index. :
http://oskicat.berkeley.edu/search~S1?/o17499583/o17499583/1%2C1%2C1%2CE/marc&FF=o17499583&1%2C1%2C
https://www.worldcat.org/title/risalah-al-jamiah-al-mansubah-lil-hakim-al-majriti/oclc/708711907&referer=brief_results
Hadeer