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\bibitem{Kuells2000} K{\"u}lls, C. (2000). Resolving patterns of groundwater flow by inverse hydrochemical modelling in a semiarid Kalahari. In \textit{Tracers and Modelling in Hydrogeology: TraM{\textquoteright}2000: Proceedings of TraM{\textquoteright}2000, the International Conference on Tracers and Modelling in Hydrogeology Held at Li{\`e}ge, Belgium, in May 2000} (447).

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