Journal Articles and References
- M. Hanssen, E for Additives, Thorsons Publishers Limited, 1987.
- R.S. Boynton, Chemistry and Technology of Lime and Limestone, 2nd edition, Wiley, Chichester, 1980.
- N.N. Greenwood and A. Earnshaw, Chemistry of the Elements, 2nd edition, Butterworth Heinemann, 1998.