7.
Barański M., Średnicka-Tober D., Volakakis N., Seal C., Sanderson R., Stewart G. B., Benbrook C., Biavati B., Markellou E., Giotis C., Gromadzka-Ostrowska J., Rembiałkowska E., Skwarło-Sonta K., Tahvonen R., Janovska D., Niggli U., Nicot P., Leifert C. (2014): Higher antioxidant and lower cadmium concentrations and lower incidence of pesticide residues in organically grown crops: a systematic literature review and meta-analyses. Britisch Journal of Nutrition, 112, 794-811.