Effects of National policies and value chain in potato seed diversity in the municipality of Colomi (Cochabamba-Bolivia)
Estructura de las comunidades y dinámica de las poblaciones de lombrices de tierra en las sabanas naturales y perturbadas de Carimagua (Colombia). Tesis (Dr. Biología)
Condensed tannins in tropical forage legumes : Their characterisation and study of their nutritional impact from the standpoint of structure-activity relationships. Thesis (Ph.D.)
Lablab Purpureus (L) Sweet: A promising multipurpose legume for enhanced drought resistance in smallholder farming -systems of eastern Kenya. M.Sc. Thesis (Sustainable International Agriculture, Specialization in Tropical Agriculture)