1. Alloway BJ (2008) Zinc in soils and crop nutrition. Online book published by the International Zinc Association, Brussels, Belgium
2. Alloway BJ (2009) Soil factors associated with zinc deficiency in crops and humans. Environ Geochem Heal 31:537–548
3. Andreini C et al (2006) Zinc through the three domains of life. J Proteome Res 5:3173–3178
4. Anonymous (2004) Fifth report on the world nutrition situation. United Nations, Administrative Committee on Coordination/Sub-Committee on Nutrition, Geneva
5. Barak P, Helmke PA (1993) The chemistry of zinc. In: Robson AD (ed) Zinc in soils and plants. Kluwer Academic Publishers, Dordrecht, pp 90–106