(EN) Hüseyin Gazi Topdemir, Salih Zeki, in Virginia Trimble, Thomas Williams, Katherine Bracher, Richard Jarrell, Jordan D. Marché e F. Jamil Ragep (a cura di), Biographical Encyclopedia of Astronomers, Springer Science & Business Media, 2007, pp. 1007-1008, ISBN9780387304007.
(EN) Mustafa Kaçar, Gökmen, Mehmed Fatin, in Virginia Trimble, Thomas Williams, Katherine Bracher, Richard Jarrell, Jordan D. Marché e F. Jamil Ragep (a cura di), Biographical Encyclopedia of Astronomers, Springer Science & Business Media, 2007, p. 427, ISBN9780387304007.
(EN) Aristide Coumbary e G. F. Chambers, Observation of a Suppposed New Inferior Planet, in Astronomical Register, vol. 3, 1865, p. 214, Bibcode:1865AReg....3..214C.