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2. Late Quaternary stratigraphy and paleogeography of the eastern Nile Delta;Coutellier;Mar. Geol.,1987
3. Groundwater recharge and paleoclimate in the Sirte and Kufra basins, Libya;Edmunds;J. Hydrol.,1979
4. Qattara Hydro Energy Project, side effects on groundwater aquifers;Ezzat,1983
5. Management of groundwater systems of the Nile Delta;Farid,1985