@INBOOK {NEUENSCHWANDER:2003a, title = {Biological control for increased agricultural productivity, poverty reduction and environmental protection in Africa}, author = {Neuenschwander, P. and Langewald, J. and Borgemeister, C. and James, B. }, editor = {Neuenschwander, P. and Borgemeister, C. and Langewald, J. }, year = {2003}, type = {Biological control in IPM systems in Africa}, pages = {377--405}, chapter = {24}, publisher = {CABI}, address = {Wallingford, UK}, isbn = {0-85199-639-6}, note = {In: Biological control in IPM in Africa edited by Neuenschwander P., Borgemeister C., Langewald J.; 414p.}, }