@ARTICLE {OIKEH:2004, title = {Environmental stability of iron and zinc concentrations in grain of elite early-maturing tropical maize genotypes grown under field conditions}, author = {Oikeh, S. and Menkir, A. and Maziya-Dixon, B. and Welch, R. and Glahn, R. and Gouch, G. }, journal = {Journal of Agricultural Science}, year = {2004}, volume = {142}, pages = {1--9}, }