Damascus

1. Louis, C. / Fermin, J. (1981): Comparaison économique des différentes méthodes de construction d'un tunnel a Damas. Economic comparison of various methods of boring a tunnel in Damascus. Presented at: AFTES - Journées d'études, Nice, 1981, pp. 220-222.
2. Harvey, John H. (1990): Minarets of Damascus. In: Transactions of the Ancient Monuments Society, v. 34 ( 1990).