1. Gender differentials in farm productivity: implications for household efficiency and agricultural policy;Alderman,2003
2. Targeting agricultural research to benefit poor farmers: relating poverty mapping to maize environments in Mexico;Bellon;Food Policy,2005
3. The Political Economy of Soil Erosion in Developing Countries;Blakie,1985
4. Agrarian Change under Population Pressure;Boserup,1965
5. Land degradation and water productivity in agricultural landscapes;Bossio,2008