1. Evaluating new directions for the lithium market;Nicholson;Journal of Minerals,1998
2. Lithium reserves and resources;Evans;Energy,1978
3. Western world lithium reserves and resources, The Institute of Metals, Aluminium-Lithium Alloys III;Evans,1986
4. The current status of the lithium business;Evans,1988
5. Evans RK. An abundance of lithium; March 2008. http://www.che.ncsu.edu/ILEET/phevs/lithium-availability/An_Abundance_of_Lithium.pdf.