1. Handbook of Preparative Inorganic Chemistry / Ed. G. Brauer. Elsevier Science: Burlington, 1965, vol. 2.
2. L. B. Okhlopkova and S.Yu. Troitskii. Activated Carbon: Classifications, Properties and Applications. Nova Science Publishers: New York, 2011.
3. L. I. Elding. Acta Chem. Scand., 1970, 24, 1331.
4. L. I. Elding. Acta Chem. Scand., 1970, 24, 1341.
5. L. I. Elding. Acta Chem. Scand., 1970, 24, 1527.