Matela, N., Nell, W. T. & Lowenberg-DeBoer. 2003. The status of precision agriculture in cash-crop production in South Africa. SAIAE Journal, 33:1:109-119.
Nell, W. T. & Matela, N. 2003. Precision agriculture in Africa. SAIAE Journal, 33:1:120-148.
Nell, W. T. & Matela, N. 2005. Proposed chapter: Precision agriculture in Africa and South Africa. In Precision farming – A global perspective. New York: Haworth Food Products Press. (Submitted 2001; to be published in 2005).
Armour, R. J., Viljoen, M. F. & Nell, W. T. 2001. The potential and use of electronic mail technology for conducting surveys in South Africa: A case study entitled “SA Agri-Success 2000". Agrekon, 40(1):84-94.
Ahmed, M. M., Sanders, J. H. & Nell, W. T. 2000. New sorghum and millet cultivar introduction in Sub-Saharan Africa: Impacts and policy implications. Agricultural Systems, 64(1), April: 55-65.
Nell, W. T. 1999. “Towards developing financial management strategies for land reform beneficiaries in the Bloemfontein-Thaba Nchu area of the Free State Province of South Africa”, Development Southern Africa, 16(3), Spring.
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