(1963) "The Longer Introduction to the Zij-i Ilkhani of Nasir ad-Din Tusi", Journal of Semitic Studies 8(2), pp.244-254 Edward Stewart Kennedy (1956) "A Survey of Islamic Astronomical Tables", Transactions of the American Philosophical Society 46(2), pp. 3, 39-40. Javad H. Zadeh (1985) "A Second Order Interpolation Scheme Described in the Zij-i Ilkhani", Historia Mathematica 12: 56–59. External links The held by the Wellcome Collection in London 1272 books Astronomical tables Astronomical works of the medieval Islamic world 13th century in science 1270s in the Mongol Empire Ilkhanate Persian-language literature