[1]
M. R. Provenzano, H. El Bilali, V. Simeone, D. Mondelli, and N. Baser, “Monitoring of Soil Copper Concentrations in Different Organic Farms over a Three-Year Period in Apulia, South-Eastern Italy”, Ital J Agronomy, vol. 4, no. 1, pp. 41–52, Mar. 2009.