@ARTICLE {DIXON:2002a, title = {Response of cassava genotypes to four biotic constraints in three agroecologies of Nigeria}, author = {Dixon, A. and Ngeve, J. and Nukenine, E. }, journal = {African Crop Science Journal}, year = {2002}, volume = {10}, number = {1}, pages = {11--21}, issn = {1021-9730}, note = {RTB; Root and Tuber; Cassava}, }