Biological Nitrogen Fixation: Towards Poverty Alleviation through Sustainable Agriculture - Dakora, F.D.; Chimphango, S.B.M; Valentine, Alex J.; Chimphango, Samson B. M.; Dakora, Felix D.; Elmerich, Claudine; Newton, William E.; Valentine, Alex J.; SpringerLink (Online service) (Springer Netherlands, 2008)