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Labor requirements and profitability of alternative soil fertility replenishment technologies in Zambia
Ajayi, Olu Clifford, (2008)
Limits to Food Production
Conklin, H.E., (1970)
Evaluating the efficiency of a N-input tax under different policy scenarios at different scales
Petsakos, Athanasios, (2010)
Assessing desertification and water harvesting in the Middle East and North Africa : policy implications
Nasr, Mamdouh, (1999)
Assessing desertification and water harvesting in the Middle East and North Africa: Policy implications