“Emphasizing the Toxicity of Heavy Metal Ions on Plants: Monitoring With an Amino Acids Assay”. The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, vol. 37, no. 1, Mar. 2014, pp. 51-56, https://ojs.ugal.ro/index.php/mms/article/view/2647.