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Author Title Year Publication Volume Pages
Vogel, J.C.; Talma, A.S.; Heaton, T.H.E. Gaseous nitrogen as evidence for denitrification in groundwater 1981 Journal of Hydrology 50 191-200
Stone, A.E.C.; Edmunds, W.M. Naturally-high nitrate in unsaturated zone sand dunes above the Stampriet Basin, Namibia 2014 Journal of Arid Environments 105 41-51
Heaton, T.H.E. Sources of the nitrate in phreatic groundwater in the western Kalahari 1984 Journal of Hydrology 67 249-259
Vushe, A.; Amutenya, M. Investigating nitrate retention capacity, elementary and mineral composition of Kalahari sandy soils at Mashare farm in Namibia, Okavango river basin 2019 Scientific African 6 00193
Schwiede, M.; Duijnisveld, W.H.M.; Böttcher, J. Investigation of processes leading to nitrate enrichment in soils in the Kalahari Region, Botswana 2005 Physics and Chemistry of the Earth, Parts A/B/C 30 712-716