Nakhla et.al: Paers on restoration of the Sphinx

Nakhla, S.M., and M. Abd El Kader.

“Mortars and Stones for the Restoration of Masonry Works in the Sphinx.” 

In The World of Ancient Egypt. Essays in Honor of Ahmed Abd el-Qader el-Sawi, pp. 207–215. 

Edited by Khaled Daoud and Sawsan Abd el-Fatah. 

Supplément aux Annales du Service des Antiquités de l'Egypte, Cahier no. 35. 

Cairo: Supreme Council of Antiquities, 2006. 5.2 MB

Nakhla, S.M., H. Hubacek, M. Abd El Kader, E. El Gazzar. 

“Modern Consolidants: An Approach to the Consolidation of the Mother Rock of the Sphinx.” 

In The World of Ancient Egypt. Essays in Honor of Ahmed Abd el-Qader el-Sawi, pp. 201–206. 

Edited by Khaled Daoud and Sawsan Abd el-Fatah. 

Supplément aux Annales du Service des Antiquités de l'Egypte, Cahier no. 35. 

Cairo: Supreme Council of Antiquities, 2006.

online at Giza Digital Library