Colonel Howard Vyse, «Operation Carried On At The Pyramids Of Gizeh in 1837», James Frazer, London, 1989, p.237.
460
A. Lucas, «Ancient Egyptian Materials And Industries», p.237.
461
El Sayed El Gayar, M.PJones, «Metallurgical Investigation of an Iron plate found in 1837 in the Great Pyramid at Gizeh, Egypt» in «Journal of the Historical Metallurgy Society», vol. I, 1989, pp. 75—83.
