@INPROCEEDINGS {AMAZA:2007, title = {A participatory adoption of improved crop technologies in the savannas of West Africa: empirical study from Borno, Nigeria}, author = {Amaza, P. and Ellis-Jones, J. and Kamara, A. and Helsen, J. and Gaya, H. *}, booktitle = {8th African Crop Science Society Conference, 27-31 Oct. 2007: proceedings}, year = {2007}, volume = {8}, pages = {1369--1375}, }