Ghazy, S.E.-S. et al. 2010. Flotation-separation of toxic metal ions from aqueous solutions using thiosemicarbazide derivatives as chelating agents and oleic acid as a surfactant. European Journal of Chemistry. 1, 2 (Jun. 2010), 76–82. DOI:https://doi.org/10.5155/eurjchem.1.2.76-82.53.