Project E: enhancing livelihoods in the humid and subhumid zones of west and central Africa through profitable and sustainable intensification of diverse agricultural systems - Amegbeto, K.; Asiedu, Robert; Bandyopadhyay, Ranajit; Carsky, R.J.; Cherry, A.; Chikoye, David; Cornet, D.; Coyne, Danny L.; Dixon, Alfred G.O.; Dury, S.; Gockowski, J.; Halos-Kim, L.; et al. (2003)