@INPROCEEDINGS {HAHN:1991c, title = {Cassava in Africa: towards a broader genetic base}, author = {Hahn, S. K. and Asiedu, R. and Dixon, A. and Porto, M. C. M. and Bai, K. V. }, booktitle = {The role of root crops in regional food security and sustainable agriculture: Proceedings, Fourth Eastern and Southern Africa Regional Workshop on Root and Tuber Crops, Mansa, Zambia, 29 Oct to 2 Nov 1990, edited by M.N. Alvarez and R. Asiedu}, year = {1991}, pages = {50--54}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {RTB; Root and Tuber; Cassava}, }