F. P. de Vries

Soil Nutrient Depletion and Population Growth in Sub-Saharan Africa: A Malthusian Nexus?

P. Drechsel, D. Kunze, F. P. de Vries, 2001 .

Integrating “livelihoods” into integrated water resources management: taking the integration paradigm to its logical next step for developing countries

P. Drechsel, D. J. Merrey, P. Drechsel, 2005 .

Food supply capacity study at global scale

P.W.J. Uithol, J. Groot, J.J.R. Groot, 1998, Nutrient Cycling in Agroecosystems.