@PROCEEDINGS {HAHN: 1983a, title = {The impact of biottechnology on food production in Africa: the cassava story}, author = {Hahn, S. K. and Terry, E. R. and Russell, N. }, booktitle = {Paper submitted at a joint meeting on international cooperation for African Technological development}, year = {1983}, note = {5-7 December 1983, Dakar, Senegal}, }