1. Sources of recharge to the Basal Nubian Sandstone aquifer, Butana region, Sudan;Darling,1987
2. The hydrogeochemical characterisation of groundwaters in the Sirte Basin, Libya, using strontium and other elements;Edmunds,1981
3. A geochemical and isotopic approach to recharge evaluation in semi-arid zones — past and present;Edmunds,1980
4. Estimation of aquifer recharge using geochemical techniques;Edmunds;Rep. Brit. Geol. Surv. No. WD/OS/87/1,1987
5. Solute profile techniques for recharge estimation in semi-arid and arid zones;Edmunds,1988