PINTILIE, O.; ZAHARIA, M.; TUDORACHI, L.; BĂNCILĂ, S.; DROCHIOIU, G.; SANDU, I. 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 2014, 37, 51-56.