1. For a general reference to alkali metal chemistry, refer to: N. N. Greenwood, A. Earnshaw, Chemistry of the Elements, Pergamon Press, Oxford, 1984, pp. 75–116.
2. For a general reference to alkali metal chemistry, refer to this source and references found therein: F. A. Cotton, G. Wilkinson, C. A. Murillo, M. Bochmann, Advanced Inorganic Chemistry, 6th edn., J. Wiley & Sons, New York, 1999, pp. 92–110.
3. E. J. Verspohl, Lithium in Biology and Medicine, Eds. G. N. Schrauzer, K. Klippel, VCH Verlagsges. mbH, Weinheim, 1991, p. 209.
4. C. R. Fresenius, C. Remigius, Manual Qualitative Chemical Analysis, J. Wiley & Sons, New York, 1897, p. 430.
5. R. H. Petrucci, F. G. Herring, J. D. Madura, C. Bissonnette, General Chemistry, Principles & Modern Applications, 9th edn., Macmillan Publishing Company, Toronto, 2007, p. 877.