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Bromley, J and Brouwer, J and Barker, A P and Gaze, S R and Valentine, C (1997) The role of surface water redistribution in an area of patterned vegetation in a semi-arid environment, south-west Niger. Journal of Hydrology, 198 (1-4). pp. 1-29. ISSN 0022-1694
Patra, A K and Rego, T J (1997) Measurement of nitrate leaching potential of a vertisol using bromide as a tracer under rainfed conditions of the indian semi-arid tropics. Soil Science, 162 (9). pp. 656-665. ISSN 0038-075X