Ananiashvili, N., et al. “Adsorption of Iron(II) and Cadmium(II) Ions Separately Using Carbon Materials from Hazelnuts and Walnuts Waste Shells”. Asian Journal of Chemistry, vol. 34, no. 12, Nov. 2022, pp. 3100-4, doi:10.14233/ajchem.2022.23838 .