Marek Chłodnicki, Marek Lemiesz, Anna Longa, Piotr Osypiński, Michał Sip, Fourth Cataract: Excavations at Es-Sadda and Hagar El-Beida, Survey between Es-Sadda and Shemkhiya : Two Seasons of Work in 2005, Polish Archaeology in the Mediterranean, 2007, 17, , s. 337-347