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Hiernaux, P and Bielders, C L and Valentin, C and Bationo, A and Fernandez-Rivera, S (1999) Effects of livestock grazing on physical and chemical properties of sandy soils in Sahelian rangelands. Journal of Arid Environments, 41 (3). pp. 231-245.
Bielders, C L and Baveye, P and Wilding, L P and Drees, L R and Valentin, C (1996) Tillage-induced spatial distribution of surface crusts on a sandy Paleustult from Togo. Soil Science Society of America Journal, 60 (3). pp. 843-855. ISSN 0361-5995