@article{ShataKnetschDegensetal.2008, author = {Abdu A. Shata and Georg Knetsch and Egon T. Degens and Karl Otto M{\"u}nnich and M. El-Shazli}, title = {The geology, origin and age of the ground water supplies in some desert areas of U.A.R.}, journal = {Bulletin de l'Institut Desert d'Egypte}, volume = {12}, pages = {61 -- 124}, year = {2008}, }