Soil physical characteristics under different land use systems and duration on the Colombian savannas = Caractéristiques physiques de sols des savanes de Colombie en fonction de leur mode de mise en valeur et de leur ancienneté
Sustainable integrated management of whiteflies as pests and vectors of plant viruses in the tropics: DANIDA projects: Phase 1: network formation, diagnosis and analysis for integrated pest management of whiteflies in the tropics