@INPROCEEDINGS {NKAMLEU:2006, title = {IITA's experience with ex-post impact assessment of agricultural research}, author = {Nkamleu, G. B. and Coulibaly, O. and Sanogo, D. }, booktitle = {26th Conference of the International Association of Agricultural Economists, 12-18 August 2006, Queensland, Australia}, year = {2006}, pages = {1--27}, publisher = {International Association of Agricultural Economists}, }