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\bibitem{Uugulu+Wanke2020} Uugulu, S., \& Wanke, H. (2020). Estimation of groundwater recharge in savannah aquifers along a precipitation gradient using chloride mass balance method and environmental isotopes, Namibia. \textit{Physics and Chemistry of the Earth, Parts A/B/C}, \textit{116}, 102844.

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