The hills have eyes: GIS-based studies on a possible watchtower on Umm al-Biyara

Will M. Kennedy, "The hills have eyes: GIS-based studies on a possible watchtower on Umm al-Biyara", in: Stephan G. Schmid and Michel Mouton (Eds.), Men on the Rocks. The Formation of Nabataean Petra, Logos Verlag, 2013, 271–294

Stephan G. Schmid and Michel Mouton (Eds.), Men on the Rocks. The Formation of Nabataean Petra, Logos Verlag, 2013