1. Nitrate, Agriculture and the Environment;Addiscott,2005
2. A. Bonnell, Nitrate concentrations in vegetables. Epidemiological studies in humans, in: Proceedings of the International Workshop on Health aspects of nitrate and its metabolites (particularly nitrite). Reports of the Scientific Committee for Food, European Commission, Strasbourg, 1995.
3. ECETOC Technical Report No. 27, Nitrate and Drinking Water, European Chemical Industry Ecology and Toxicology Centre, 1988, ISSN: 0773-8072-27.
4. A clinical trial of the effects of dietary patterns on blood pressure. DASH Collaborative Research Group;Appel;New England Journal of Medicine,1997
5. G. Speijers, P.A.v.d. Brandt, Nitrate, in: Food Additives Series, Joint FAO/WHO Expert Committee on Food Additives, Geneva, 2003.