1. Africover, 2002. Africover-Eastern Africa module. Land cover mapping based on satellite remote sensing. Food and Agriculture Organization of the United Nations. .
2. Weather impacts on maize, soybean, and alfalfa production in the Great Lakes Region, 1895–1996;Andresen;Agronomy Journal,2001
3. GLC2000: A new approach to global land cover mapping from earth observation data;Bartholome;International Journal of Remote Sensing,2005
4. Bartholome, E., Belward, A., Achard, F., Bartalev, S., Carmona-Moreno, C., Eva, H., Fritz, S., Gregoire, J., Mayaux, P., Stibig, H., 2002. GLC2000: Global land cover mapping for the year 2000, EUR 20524 EN, European Commission, Luxembourg.
5. Potential emissions of radiatively active trace gases from soil to atmosphere with special reference to methane: development of a global data base (WISE);Batjes;Journal of Geophysical Research,1994