Recolección de germoplasma de fríjol Phaseolus spp. L. en la región Andina del Centro de Colombia en los departamentos de Cundinamarca y Boyacá
Land use studies: Reconciling the Dynamics of Agriculture with the Environment Annual report 1993 Project PE-4
An integrated approach to soil-plant-animal interactions on grazed legume-based pastures on tropical acid soils