Ribeiro de Lima, M. T., M.-T. Cabanis, L. Matos, G. Cassanas, M. T. Kelly, and A. Blaise. “Determination of Lead and Cadmiun in Vineyard Soils, Grapes and Wines of the Azores”. OENO One, vol. 38, no. 3, Sept. 2004, pp. 163-70, doi:10.20870/oeno-one.2004.38.3.917.